Is plastic fantastic or a cosmetic catastrophe? Judge for yourself as Wonderwall.com takes a look back at dozens of celebs like Kim Zolciak-Biermann, Cardi B, Mel B, Gisele Bundchen, Pauly D, Kanye West, Meg Ryan, Kelly Rowland, Nicole "Snooki" Polizzi, Sarah, Duchess of York, Dr. Paul Nassif, Elon Musk and more before and after they had a little work done. Let's start with this model and food maven… In 2020, catwalker-turned-cookbook author Chrissy Teigen revealed to Glamour UK that she'd had a breast augmentation early in her career. "I did my boobs when I was about 20 years old," the former Sports Illustrated Swimsuit Issue model confessed. "It was more for a swimsuit thing. I thought, if I'm going to be posing, laid on my back, I want them to be perky! But then you have babies and they fill up with milk and deflate and now I am screwed." The mother of two said she didn't do it to increase her self-esteem. "Honestly, I kept them the same cup size. I just filled them out, so they are rounder and firmer," she explained, adding, "I had a quarter 'teardrop' cup in the bottom and filled out the breast line. But I want them out now. If I could do one thing, it would be to have a lift. I think you're supposed to replace [implants] every 10 years. But when you have kids you think about [the risks] of surgery and I think, 'This is not the way I want to die, in boob surgery.'" But the same year, Chrissy decided to go for it. Keep reading to see the results of her implant removal surgery, then see dozens more stars before and after plastic surgery procedures and other tweaks… RELATED: Celeb weight-loss transformations revealed

In May 2020, Chrissy Teigen revealed she was moving forward with breast implant removal surgery. "I'm getting my boobs out! They've been great to me for many years but I'm just over it. I'd like to be able to zip a dress in my size, lay on my belly with pure comfort! No biggie! So don't worry about me! All good. I'll still have boobs, they'll just be pure fat. Which is all a [breast] is in the first place. A dumb, miraculous bag of fat," she wrote on Instagram. A few weeks later, the "Chrissy's Court" star announced on social media that "Surgery went perfectly!" She soon revealed the results in a comedic Instagram post, and in July 2020, she looked incredible in a black swimsuit while on vacation in Mexico. RELATED: Reality TV stars' plastic surgery

"The Real Housewives of New Jersey" star Dolores Catania worked hard to slim down but wanted a little extra help to make herself happy, so she decided to undergo a tummy tuck in 2020. "I had lost 25 pounds from dieting and still wasn't completely comfortable with my body. I found myself still wanting to cover up," Dolores (seen here in 2016) told People magazine in July 2020. "Once I hit my goal weight and I knew that my stomach wouldn't be the way I wanted it to even if I worked out, I knew it was time." Keep reading to see her results… RELATED: Male stars with and without facial hair

"The Real Housewives of New Jersey" star Dolores Catania showed off the results of her weight loss and tummy tuck on Instagram in July 2020. "I'm turning 50 this year," she told People magazine, "and I said, 'This is the year where I'm going to do anything I've thought about or held off on. I'm ready to do it.' And I've thought about a tummy tuck for a while." She did her research and found Dr. Joseph Michaels, who performed not only a tummy tuck but 360 liposuction and a fat transfer to add some roundness to her behind. "You can't wake up every day feeling unhappy about yourself," she told People. "I'm a big advocate of doing what you need to do in order to love yourself … I'm glad I did it. I have no regrets."

In December 2019, former "The Real Housewives of New Jersey" star Dina Manzo, seen here in 2014, took to Instagram to confirm that she'd had a nose job and was a big fan of Botox. See what she looks like now…

In December 2019, former "The Real Housewives of New Jersey" star Dina Manzo posted this photo with pals Rosana Costa and Teresa Giudice on Instagram and in the caption confirmed that she'd gone under the knife. "Some of you are commenting that I look different. You're absolutely right. When the thing on the center of your face changes you're gonna look different lol. Two years ago I got my nose fixed. Since I was going under anesthesia anyway (which I totally despise) I had @drghavami make a few tweaks so I didn't have to go the filler route," she explained. "I had a really hard time adjusting to my new nose especially the first year. Although my Dr is amazing at what he does, it did change my overall look. I had a prominent Italian rounded nose and now I had this perfectly proportioned petite nose. It's a big adjustment especially when you live with the same face for 45 yrs." Dina went on to share that she's also had two chemical peels, undergone platelet-rich plasma cosmetic facials and treated herself to permanent eyebrows and lash extensions. What else? "AND I love me some Botox," she confessed.

Back when Tesla and SpaceX founder Elon Musk was starting to emerge as one of the most influential businessmen in the world, he looked a bit different than he does today. Can you see any major differences in his appearance in 2004 and now? (Keep reading to see…)

According to some reports, including a 2018 story from Page Six, it's highly probable that Tesla and SpaceX founder Elon Musk has undergone hair transplant surgery. In this picture from the 2018 Met Gala, Elon has a noticeably fuller head of hair than what he sported earlier in his career.

Adrianne Curry — who won the very first season of "America's Next Top Model" in 2003 and is seen here in 2014 — had a boob job early in her career but over the years grew to regret it. "I had glorious real boobs that I butchered due to insecurity and pressure in entertainment," she explained in a January 2020 Instagram post shortly after having her implants removed…

In November 2019, former reality TV star and model Adrianne Curry took to Instagram to explain her decision to have her breast implants removed, telling fans, "I am DONE with these painful, misshapen things! They looked good in clothes, hideous out of them. They hurt, and … I was in pain. … I am on my way to correct this idiotic decision I made when I lived in a sea of shallow vanity and immense narcissism." She had the surgery in January 2020 and, despite complications and a painful recovery process, was thrilled to be "100% natural! Nothing is fake. No dumb Instagram filter, no photoshopped flesh, no silicone," she wrote on Instagram alongside this post-surgery photo. "I am f—— beautiful JUST the way I am. I wear my scars proudly."

Sharon Osbourne, the famed music manager and host of "The Talk," is seen here in September 2017 — two years before her latest facelift. Keep reading to see the results…

"The Talk" host Sharon Osbourne debuted the results of her latest plastic surgery procedure — a summer facelift — on the 10th season premiere of her show in early September 2019 just five weeks post-op. She then showed off her new look — we don't see much of a difference — in all its glory on the 2019 Emmys red carpet days later (seen here). Sharon happily told viewers what she'd had done at 66: "I had my neck done, my jowls… [My surgeon] kind of pulled it from the top of my head and put an elastic band in it," she explained. "But everything was just lifted up. So it looks more refreshed." It's far from the first time Sharon's gone under the knife: The Botox and laser fan — who clearly did an about-face after publicly swearing off more plastic surgery back in 2012 — has previously copped to facelifts, a tummy tuck, gastric bypass surgery, breast surgeries and more. As she said in her 2013 book "Unbreakable," "There's not much I haven't had tweaked, stretched, peeled, lasered, veneered, enhanced or removed altogether."

And just for fun, here's what a pre-plastic surgery Sharon Osbourne looked like back in 1987 after five years of marriage to rocker Ozzy Osbourne.

Reality TV star Kim Zolciak-Biermann looks a lot different in this 2009 photo than she does now. Keep reading to see the results of some of her many enhancements…

Kim Zolciak-Biermann showed off her plumped-up pout while catching a flight out of LAX Airport in Los Angeles in 2016. The reality TV star had previously fessed up to having her breasts augmented and her tummy tucked, though she continues to deny she's had a nose job despite widespread speculation to the contrary. In April 2018, daughter Brielle Biermann took to social media to reveal yet another procedure the reality TV star has undergone: "My mom gets filler in her ears because her diamond earrings are too heavy….. #richpeopleproblems," Brielle tweeted. Keep reading to see Kim after another surgery in 2018…

On Sept. 19, 2018, Kim Zolciak-Biermann posted a photo of herself following breast reduction surgery — she downsized her implants — and confirmed details of the procedure to Us Weekly. "I went smaller and Dr. [Leonard] Hochstein did them," she told Us (the plastic surgeon is former "The Real Housewives of Miami" star Lisa Hochstein's husband). "He did my boobs four years ago and I loved them. I just wanted a cup size smaller. I'm in Miami recovering now. Feeling fab at 40!!" A few months earlier, Kim hinted that she'd soon be going under the knife again. "I already called Dr. Hochstein, who did my boobs and tummy a few years ago — he did my hernia repair and my tummy tuck after that," she said on her podcast in July 2018. "I said, 'You know, I feel like I should get my boobs reduced. They're heavy, my posture is terrible, I'm getting older… I was thinking of going from like a DD to like a C."

Then, toward the end of the summer in 2018, Kim Zolciak-Biermann started showing off a much fuller pout. Despite an influx of negative comments on her social media channels, the reality star simply said this about her new lips: "I love them."

Kim Zolciak-Biermann's eldest daughter, "Don't Be Tardy" star Brielle Biermann, has followed in her mom's footsteps. Brielle is seen here in 2011 when the only enhancements to her face came in the form of braces. But that would change…

"Don't Be Tardy" star Brielle Biermann has no problem taking on critics who attack her for inflating her pout. "To those who say I look better before lips… you're a liar and this photo is PROOOOOOF," she captioned an old pic of herself that she's since deleted. Brielle's long been unapologetic about her affinity for fillers. "Going to get my duck lips plumped up some more!! C ya!" she tweeted in March 2018. But less than two years later, she'd changed her tune…

Brielle Biermann posted this selfie on her Instagram Story on Jan. 6, 2020, after she'd started getting injections to dissolve her lip fillers, and her pout already looked noticeably less plump than usual. A few days earlier, she shared on Instagram that she wanted to change up her look. "Dissolved my lips yesterday…gonna look like 18 year old Brielle again soon," she captioned an image of her still-puffy lips on her Instagram Story. "2020 new year new me!"

Thanks to his profession, "Botched" star Dr. Paul Nassif is quite familiar with people getting work done. But when it comes to the plastic surgeon altering his own looks, he's sure to be subtle about the changes he makes…

"Botched" star Dr. Paul Nassif confessed in November 2019 that he quietly underwent a facelift in 2018. He admitted he felt self-conscious about extra skin around his face and jawline after he lost weight. "The excess skin, especially in my neck, was driving me crazy," he told Page Six.

Cardi B has always been open about her cosmetic enhancements. The rapper has revealed in interviews that she had a breast augmentation when she was a 20-year-old stripper, got injections in her bottom to make it fuller and got her teeth fixed. In September 2018 (seen here) — a few months after she gave birth to her first child, Kulture — Cardi told fans on Instagram that she planned to go under the knife again to re-work her post-baby body because "Kulture did me bad."

Just because she's part of Britain's royal family doesn't mean that Sarah, Duchess of York is immune to worrying about her appearance as she ages. In 2019 — the year she turned 60 — Fergie admitted that she's had several plastic surgery procedures to help her look as youthful as possible, and it seems like it's worked…

"I had Botox a long time ago when there was nothing else available," Sarah, Duchess of York admitted in an interview with The Daily Mail in October 2019, in which she confessed to multiple plastic surgery procedures. In 2018 — to prepare for daughter Princess Eugenie's wedding — she underwent a laser treatment on her face. "I'm really happy to be open about what I've had done," Fergie said, going on to share that she's also been a fan of mesotherapy — an injection of vitamins, minerals and amino acids under the mesodermal layer of her face to help plump up her skin — as well as organic fillers and threadlift procedures. In March 2019, she went to the Bahamas to have regenerative stem cell therapy on her feet. "They shaved the bone [near my big toe] and implanted stem cells — 20 million of them taken from my midriff — into my feet to make new cartilage," she explained.

In an interview with "Entertainment Tonight" that hit the internet on May 1, 2019, Cardi B revealed she'd made good on her promise to herself to go under the knife post-baby. "I just got my boobs redone," she said. "I feel good, but then sometimes I feel like not, you know? [When] your skin is stretched out." Cardi debuted her new look at the 2019 Billboard Music Awards.

A few days after her boob job reveal, Cardi B admitted on May 5, 2019, that she'd also recently had liposuction. A few songs into her set at the Beale Street Music Festival in Memphis, Tennessee, she told the audience (as reported by People magazine), "I have some news for y'all. I should have canceled today. I shouldn't really be performing because moving too much is gonna f— up my lipo." But she delivered an energetic performance anyway! Cardi had first hinted to fans that she wanted liposuction seven weeks after she gave birth to daughter Kulture in 2018. "I still feel like I got a lot of love handles right here," she said on Instagram Live while pulling on her stomach. "It's not much but it's like — I'm used to having, like, a real tight stomach."

"Jersey Shore" star Paul "DJ Pauly D" DelVecchio (left) showed off his tanned, gym-honed body on the beach in Miami alongside co-star Ronnie Ortiz-Magro in April 2010 during their MTV heyday. Nearly a decade later, Pauly was still hitting the beach shirtless, though he reportedly had a little help achieving his sculpted bod this time around…

DJ Pauly D looked great when he hit the beach in Cancun, Mexico, on March 21, 2019. But according to a report from The Blast, the "Jersey Shore" star got a little help from a GTL routine that included gym, tan… and liposuction. Sources told The Blast that though Pauly was in already good shape, he underwent an abdominal etching treatment to highlight his six-pack not long before this beach retreat.

In September 2018, Gisele Bundchen told People magazine that after breastfeeding kids Benjamin and Vivian Brady for more than 18 months each, her breasts weren't just smaller than before but uneven. "I was always praised for my body and I felt like people had expectations from me that I couldn't deliver," the supermodel said. "I felt very vulnerable because I can work out, I can eat healthy, but I can't change the fact that both of my kids enjoyed the left boob more than the right. All I wanted was for them to be even and for people to stop commenting on it." She did something about it in 2015…

In September 2018, Gisele Bundchen told People magazine that she made the decision to have a breast augmentation in 2015. (She's seen here in 2016 nearly a year after the surgery.) In her 2018 book "Lessons: My Path to a Meaningful Life," she revealed she regretted going under the knife. "When I woke up [from surgery], I was like, 'What have I done?' I felt like I was living in a body I didn't recognize," the supermodel said. "For the first year I wore [baggy] clothes because I felt uncomfortable."

Teresa Giudice initially got breast implants in 2010. "I always had to get padded tops! I never liked how I looked in bathing suits," the reality TV star told Steppin' Out magazine the same year of why she decided to enhance her natural A-cup. "I never wanted to put lingerie on. I feel you need boobs for lingerie." In 2018, she went back under the knife…

In October 2018, "The Real Housewives of New Jersey" star Teresa Giudice admitted she'd upgraded her implants several weeks earlier. "I just got my breasts redone. Remember Season 1 [of 'RHONJ'] when I had my breasts done? So I just changed out my implants and the doctor is here, his name is Dr. [Barry] DiBernardo," Teresa told the crowd at the New Jersey Ultimate Women's Expo on Oct. 28, Radar Online reported. Teresa, seen here post-surgery in early 2019, added that she'd just started working out again after taking off "four or five weeks" to heal.

The world speculated for months that Kylie Jenner (pictured in 2013) also got a little help plumping up her pout.

And it was all true! In 2015, Kylie Jenner — who showed off her plump pout during the 2014 American Music Awards — finally fessed up to using lip fillers on an episode of "Keeping Up with the Kardashians." Guess her fuller lips weren't the result of overdrawing after all!

In 2016, Kanye West — seen here in New York City that September — didn't feel he was looking his best. So he quietly underwent a plastic surgery procedure that, he later told TMZ, led to an opioid addiction.

In May 2018, Kanye West told TMZ that he had liposuction and was prescribed opioids to deal with the pain during his recovery. He said he got off the medication just before he was hospitalized amid a mental health crisis in November 2016. "I had plastic surgery because I was trying to look good for y'all," the rapper said while gesturing to his midsection. "I got liposuction because I didn't want y'all to call me fat like y'all called Rob [Kardashian] at the wedding and made him fly home before me and Kim [Kardashian] got married [in 2014]. I didn't want y'all to call me fat so I got liposuction."

On July 1, 2019 — her 38th birthday — "The Real Housewives of Beverly HIlls" star Teddi Mellencamp (seen here in 2006) posted before-and-after photos on Instagram showing her dramatic weight loss over the years. In the comments, a fan asked, "You look amazing your nose is smaller did u have surgery?" Teddi replied, "Not on my nose. I did on my tata's," People magazine reported. Find out why she did it next…

"The Real Housewives of Beverly Hills" star Teddi Mellencamp, seen her in June 2019, explained to another fan on July 1, 2019, why she had a breast augmentation. "Was it bc you needed a lift? Just curious from my weight loss, I feel I need a lift or redone?" a fan asked. Teddi — a mom of two and stepmom of one — replied, "Mine didn't need a lift. They deflated after breastfeeding and weight loss so they added 210 cc implants."

Scary Spice Mel B looked great when she performed with the Spice Girls at the Amigo Awards in Spain in 1997. More than two decades later, she revealed that she went under the knife to tweak her appearance…

On the May 25, 2019, episode of "Piers Morgan's Life Stories," Spice Girl Mel B, seen here a few months earlier, confessed that she had a breast augmentation — though didn't reveal when — as well as "a few [other] nip and tucks." In 2017, the mother of three also went under the knife to have a tattoo featuring ex-husband Stephen Belafonte's name surgically removed from her torso following their bitter split.

British model Lottie Moss — supermodel Kate Moss's half-sister — has always been beautiful, but she's made some subtle alterations to her appearance over the years. Keep reading to see what she's done…

In 2019, Kate Moss's model sister Lottie Moss admitted to getting breast implants and lip fillers. "You've got to spend money on yourself and you've got to treat yourself, and this is one of those little treats that women like to do," she told the Daily Mail. However, Lottie also admitted she regrets "following the crowd" by getting her lips done. "I didn't need it," she added.

Blac Chyna, seen here with ex Tyga in late 2011, was an exotic dancer for six years before she got into the beauty business with the launch of Lashed by Blac Chyna. She's long been known for her trademark dimples, which she "encouraged" with facial piercings, she told talk-show host Wendy Williams in May 2019. "When I took them out I was like, 'Oh man, now I got dimples!'" she said. But that's far from the only way Chyna has changed her body over the years…

In May 2019, Blac Chyna revealed to talk-show host Wendy Williams that she's gone under the knife multiple times. "I've had lipo before, I've had my breasts done four times," she admitted, explaining that her breast augmentations have made her chest bigger as well as smaller. (At one point, she said, "I was like, 'This is just too much.'") Chyna, who's also famous for her curvaceous derriere, told Wendy that she had liposuction to reduce her bottom after she gave birth to her second child, Dream Kardashian, in 2016. "I went and got something done. I got lipo because after I had Dream, it was like, out of control. So I had some of it taken out," Chyna, seen here in 2018, explained.

Shanna Moakler, seen here in 2017, gained fame during her former marriage to blink-182's Travis Barker, as well as their MTV reality show, "Meet The Barkers." She was also a former Miss USA.

In December 2018, Shanna Moakler shared this photo five weeks after a tummy tuck. "I am starting to see a difference," she wrote on Instagram. "It's been a long recovery but I feel a ton better, I have more energy and I can't wait til I get the ok to get back to the gym."

Melissa Gorga (pictured in 2011) found fame on "The Real Housewives of New Jersey" less than a decade ago. She looks a bit different now…

In October 2016 — after years of dodging the topic — Melissa Gorga (pictured in 2017) finally confessed to having undergone rhinoplasty surgery. "Let's be honest, it's the worst kept secret that I've had a nose job," she said.

Cookbook author, Food Network personality and restaurateur Ayesha Curry, who's married to NBA star Steph Curry, revealed in a May 2019 interview with Working Mother magazine that she had breast augmentation surgery after the 2015 birth of her second child. "I didn't realize at the time, but after having Ryan, I was battling a bit of postpartum that lingered for a while," she explained. "It came in the form of me being depressed about my body. So I made a rash decision."

Breast augmentation surgery didn't work out the way Ayesha Curry thought it would. "The intention was just to have them lifted, but I came out with these bigger boobs I didn't want," she told Working Mother magazine in May 2019. "I got the most botched boob job on the face of the planet. They're worse now than they were before." Though she said she'd "never do anything like that again," she still supports other women who choose to go under the knife: "I'm an advocate of if something makes you happy, who cares about the judgment?"

Bristol Palin has gone under the knife before, but in 2018, she underwent one particularly radical change that completely changed a big element of her looks…

The new "Teen Mom" cast member admitted to getting veneers and a gum lift in 2018. Bristol Palin took to Instagram to explain her decision, writing, "I have been tremendously self conscious of my smaller teeth for YEARS. I wanted my smile to match how I genuinely feel on the inside."

In 2015, Simon Cowell told Britain's Mirror that he'd scaled back on his beloved Botox injections after Sharon Osbourne pointed out he couldn't move his face much anymore. "Hopefully I look better now — I probably did have a little too much Botox a couple of years ago, because everyone on TV has it," he said. "Now I have facials, but nothing too extravagant at the moment." That changed a few years later…

In May 2018, Simon Cowell told The Sun on Sunday that he'd visited cosmetic surgeon Jean-Louis Sebagh for a Silhouette Soft Lift. The $2,700 procedure, the newspaper writes, "involves sewing bioplastic-infused thread into the face and neck and tugging it to get rid of sagging skin." The "America's Got Talent" judge explained to the newspaper, "There's lots of things you can do now. You don't just have to stuff your face with filler and Botox."

Kaley Cuoco has made quite a transformation — not just in her career — as you can see from this photo of the star in 2002.

Kaley Cuoco has been very open about going under the knife. The star of "The Big Bang Theory" has admitted to getting a nose job, breast augmentation and fillers in her neck. While talking about the work she's had done, Kaley said she doesn't regret a thing and that plastic surgery is a personal choice.

Meg Ryan effortlessly treaded the line between cute and sexy when she starred opposite Billy Crystal in 1989's "When Harry Met Sally." But years later, she looked like an entirely different person.

The Internet practically broke when Meg Ryan showed off her dramatically different appearance while presenting during the Tony Awards in June 2016.

Long before she was on "Vanderpump Rules," Stassi Schroeder competed on "The Amazing Race" as a teen. Nowadays, however, she looks very different — and it's not just her hair color…

Stassi Schroeder has been very open about her plastic surgery past. The former "Vanderpump Rules" star told Daily Mail Australia, "I've always been really open. Even when I got a chin implant when I was 18 years old, and anyone who asked me, I would tell them. I don't like when people put on this facade and they're perfect in every photo. Then the rest of us look at it and feel badly about ourselves." And if Stassi — who's also copped to a breast lift and reduction in 2015 — gets any more work done, she'll certainly be sharing! "I'm all about plastic surgery or Botox and fillers, but be open about it, because there's nothing to be ashamed of," she explained.

"I wanted to get breast implants when I was 18, but my mom and Beyonce's mom told me to really think about it first," Kelly Rowland (pictured in 2005) told Shape magazine in 2013. Well, she thought about it — and ultimately decided to stick with her plan!

Kelly Rowland waited 10 years to get her breasts enhanced. "Once I felt ready, I tried on padded bras and walked around in them to see how it would feel," she told Shape in 2013. "You have to know what you're getting, no matter what type of surgery it is." Her new figure was on full display during the 2016 Art of Elysium Heaven Gala in Los Angeles.

One of the original stars of "The Real Housewives of Orange County," Jeana Keough (seen here in 2012), finally opted to join plenty of her castmates and go under the knife. The results?

Jeana Keough's plastic surgeon has spoken openly about the facelift the reality star underwent in 2017 — Jeana even allowed the procedure to be documented for People magazine. "My goal was to look 10 to 15 years younger — I want to look 15 years younger because I like guys that are 15 years younger," she confessed. You go, girl!

Lil Kim (pictured in 1998) has always played with wigs, makeup and colored contacts, but she's since found more permanent ways to change her looks.

We barely recognized Lil Kim when she showed up on the red carpet at an event for Angel Brinks Fashion in Los Angeles on March 31, 2016.

As a thin-lipped reality TV star, Snooki (pictured in 2012) sought ways to boost her selfie smile.

In 2015, Snooki admitted to getting lip injections and then had Botox. With two kids under her belt, Snooki later decided to get breast implants for a "mommy makeover."

In March 2015, Iggy Azalea (pictured in 2012) admitted that she'd gotten her breasts augmented. "I'd thought about it my entire life," she told Vogue. "I decided I wasn't into secret-keeping." She added to E! News: "I love them so much I had to talk about them!" But she wasn't finished changing up her look…

Iggy Azalea reportedly got nose and chin jobs in early 2015. She showed off her augmented breasts, as well as her more refined facial features, at an event in Long Beach, California, on Sept. 29, 2016.

Foxy Jane Fonda (pictured in 2009) is a fashion model, fitness guru and two-time Oscar winner. But the stunner found that keeping up appearances in Hollywood was hard to do.

In early 2010, Jane Fonda admitted to having her eyes, chin and neck done. "It was a hard decision to make, and I decided if I'm going to do it, I'm going to tell the truth," she told "ET." "I'm writing a book about aging, so I can't write that book and not say I've had plastic surgery. And you know, I just decided it was for me — I don't want to have bags under my eyes that make me look tired, and so forth and so on." She showed off her new look during Vanity Fair's 2014 Oscar Party.

A fresh-faced Blake Lively looked dramatically different during during Nickelodeon's 18th Annual Kids Choice Awards in Los Angeles on April 2, 2005.

Blake Lively's nose sure changed over the course of a decade! It looked much slimmer during the premiere of "The Age of Adaline" in New York City on April 19, 2015. Still, the blonde beauty maintains that she never got a nose job.

We've long forgotten the days when Donatella Versace looked how she did while posing with brother Gianni Versace at a party in Paris back in 1990.

Compared to how she looked back in 1990, it was clear that Donatella Versace has had a lot of work done over the years when she attended the Anthony Vaccarello presentation during Paris Fashion Week on May 3, 2015.

The Jackson clan has never been one to shy away from plastic surgery, and it was no different for Janet Jackson, who looks much different now than she did during the early '80s while portraying Charlene DuPrey on "Diff'rent Strokes."

While she's not unrecognizable, Janet Jackson's nose certainly looks different these days. She showed off her slimmer snout during Paris Fashion Week on March 5, 2016.

"Hollywood makes it hard; this business makes it harder," Courteney Cox (pictured in 1998) told NewBeauty in June 2017 of her decision to enhance her looks as she aged. "I grew up thinking appearance was the most important thing. That as long as I looked okay, I would be okay, which got me into trouble." Now see how, exactly, she got into trouble…

Unfortunately, it looked like Courteney Cox had gone a bit overboard with fillers during the 2015 Grammys. She's since adopted a more natural look. "I've had all my fillers dissolved," she told NewBeauty in June 2017. "Things are going to change," she added. "Everything's going to drop. I was trying to make it not drop, but that made me look fake. You need movement in your face, especially if you have thin skin like I do. Those aren't wrinkles — they're smile lines. I've had to learn to embrace movement and realize that fillers are not my friend."

Hayden Panettiere sure has grown up since she attended the 46th Annual CMA Awards at the Bridgestone Arena in Nashville on Nov. 1, 2012. But even before she became a mom, we'd started to notice changes in the "Heroes" star…

Hayden Panettiere turned heads when she stepped out on the beach in 2013 looking particularly busty in a fuchsia bikini. She's since rocked plenty of revealing ensembles showing off her enhanced assets.

LeAnn Rimes (pictured in 2009) won us over with her stunning vocals on hits like "How Do I Live" and "Can't Fight the Moonlight." She emerged on the scene as a bright-eyed, baby-faced teen during the '90s, but she now looks noticeably different.

These days, LeAnn Rimes is sporting a much bigger bust — as evident in this shot from 2016. Back in 2011, a source revealed to Us Weekly that the singer had her breasts augmented: "She's always, always been insecure about her size," said the source. "She was a small A-cup. She often talked about wanting to get implants. She'd say, 'I just want a little bit so they're proportionate to my body.'"

When "Crouching Tiger, Hidden Dragon" took Hollywood by storm in 2000, so did its star, Chow Yun-Fat. His plastic surgery was subtle. Can you tell what he had done?

"As I grew older, my eyelids began to droop," Chow Yun-Fat (pictured in 2012) said during a 2009 TV interview. "I began going for cosmetic surgery in Hong Kong when I was filming 'God of Gamblers' in 1989. If you go to Hong Kong for cosmetic surgery, I can introduce you to the doctor. He's cheap and good."

Goldie Hawn (pictured in 1994) is a beloved Hollywood star who's been a household name since the late 1960s. But in recent years, it's not just her acting chops that have gotten people talking…

Goldie Hawn's cheekbones appeared especially full when she attended the 2014 Academy Awards. Do you think she went under the knife? The iconic actress has neither confirmed nor denied the plastic surgery rumors.

Liza Minnelli — whose mother is the late Judy Garland — was destined to become a star. But part of what has made Liza (with a Z!) such a legend in her own right is her talent and her quirky beauty, which was evident in this portrait from 1992.

Don't get us wrong, we love Liza Minnelli. But didn't she look a little different during the 2014 Oscars? While the singer-actress has never commented on plastic surgery rumors, it's difficult to believe that her looks could've changed so much over the years without some help.

Kim Novak (pictured in 1979) was a teen beauty queen and a Hollywood starlet before the age of 20. She eventually achieved sex symbol status thanks to iconic roles in films like "Vertigo." But if we hadn't told you who she was, would you recognize her today?

Kim Novak and Matthew McConaughey presented the award for Best Animated Feature Film during the 2014 Academy Awards. They named "Frozen" the winner — which resulted in many a punchline about Kim's appearance. Was it a fair use of the word?

Renee Zellweger (pictured in 2011) is no stranger to having people comment on her appearance. After all, she did gain 30 pounds for her role in "Bridget Jones's Diary." But the rumblings have been especially loud in recent years.

Renee Zellweger sure looked different during a "Bridget Jones's Baby" luncheon in New York City on Sept. 13, 2016. But she's denied plastic surgery is to blame. "Not that it's anyone's business, but I did not make a decision to alter my face and have surgery on my eyes," she wrote in an essay for the Huffington Post.

With her dark hair and beautiful skin, Lara Flynn Boyle (pictured in 2004) spent many years commanding lead roles on hit series like "Twin Peaks" and "The Practice." But nowadays she looks completely different.

To be fair, Lara Flynn Boyle wasn't all dolled up for a day of grocery shopping when paparazzi caught her out and about in Los Angeles on Oct. 16, 2013. But there was something distinctly different about the actress, don't you think? Behind her makeup-free face, her lips and cheeks were very puffy — and not in a natural way. Despite the drastic changes, Lara has never commented on her changing face.

Rose McGowan (pictured in 2002) went under the knife after she was involved in a car accident.

In 2007, Rose McGowan was a passenger in a car that was involved in a traffic accident that caused her sunglasses to slice a flap of skin under her eye. The injury was so severe that the actress had a little nip and tuck on her face to prevent scarring. But does that explain all of the differences in her appearance that were evident during the 2013 Women In Film Crystal + Lucy Awards?

It's hard to be a 51-year-old woman on reality TV when everyone around you is making improvements to their faces. Just ask Vicki Gunvalson (pictured in 2011), who decided to make a change in 2012.

Vicki Gunvalson was so sick of being compared to Miss Piggy that she had cartilage reconstruction on her nose, got a chin implant and received fat injections to give her cheeks a bit more oomph. The changes were on full display when she attended the Bravo Upfront party in New York City on April 3, 2013.

By 2018, "The Real Housewives of Orange County" Vicki Gunvalson was looking different again. "I had a lot of fillers in my face and I didn't feel like it was me anymore," Vicki told Us Weekly that July. "I had too many doctors, too many different times say, 'let's do this, let's do that, let's fill here, let's do Voluma, let's do Sculptra,' and by the time I was done, I looked in the mirror and was like, 'I don't even look like myself.'" Co-star Tamra Judge convinced her to have her fillers removed and get a facelift instead. And voila!

It's difficult to understand why a 22 year old would want to radically transform her body — especially one who looks like this. But that's what Farrah Abraham (pictured in 2011) decided to do!

Farrah Abraham flaunted her new figure at Sapphire Pool & Dayclub in Las Vegas on June 14, 2013. Over the years, she's gotten a nose job, lip injections, butt implants, three breast enhancements and a chin implant, which she later had removed.

When Clay Aiken (pictured in 2008) first arrived on the Hollywood scene on "American Idol," he looked like your average kid from the Midwest.

"I had operative surgery on my jaw for a TMJ thing and I had them suck the fat out of my chin while they were in there," Clay Aiken revealed in 2012. He showed off his new look during the live finale of "The Celebrity Apprentice" in New York City that same year.

Ever since Courtney Stodden became a bride at age 16, she's garnered attention for her voluptuous figure. Though she spent the first few years of her fame adamantly denying she'd had any work done, she eventually changed her tune…

After admitting to having numerous plastic surgery procedures including a breast augmentation, lip fillers and porcelain veneers, Courtney Stodden also had a nose job in early 2016. She invited "Entertainment Tonight" into surgery with her. "I'm not wild about my bump on the side of my nose," she explained. "In pictures or on red carpets I just feel really self-conscious about this bump." Her doctor said the surgery also corrected "long-standing nasal blockage and sinus issues."

We barely remember when Heidi Montag looked how she did during the 2006 MTV Video Music Awards.

After finding fame on "The Hills," Heidi Montag had 10 plastic surgery procedures in one day. She showed off her new look at a pool party in Las Vegas on April 10, 2010. Since then, she's gone under the knife again to have her F-cup breasts reduced.

No, this isn't the "after" photo. JWoww (pictured in 2010) had already gone under the knife before her debut on "Jersey Shore." And she didn't stop there…

JWoww, who looked dramatically different during the 2016 MTV VMAs, got her second boob job in 2015 after welcoming her first child the year before. But she denies she'd had any work done to her face, attributing the changes in her looks to makeup, weight loss and tans.

Back in 2004, Ashlee Simpson served as a counterpart to big sis Jessica Simpson. She had darker hair, a harder sound and a glorious schnoz. So what became of her nose?

Ashlee Simpson's nose — like her dark hair and her music career — eventually disappeared. The singer, who showed off her new look at an event in Los Angeles in April 2011, famously lopped off her honker shortly after she gave an interview to Marie Claire in which she railed against the impossible standards of Hollywood beauty. Oops.

As Posh Spice, Victoria Beckham (pictured in 1997) was the glamorous, fashion-forward member of the Spice Girls, which suited her well, as she had a perfect model's body. Has she kept it up over time?

Sort of. Victoria Beckham had no problem staying svelte, but she did get tired of being flat as a board, so she had her breasts augmented. There was a noticeable difference when she attended a press conference with the Spice Girls in London in 2007. But a few years later, she got sick of her "torpedo bazookas" (her words!) and had them removed.

A fresh-faced Megan Fox gave us major Tiffani Thiessen vibes in a promotional photo for the ABC series "Hope & Faith," which aired from 2003 to 2006. Needless to say, she's changed a lot since then…

Megan Fox, who hasn't been photographed much since her 2016 pregnancy, looked like a completely different person during an appearance on Univision's "Despierta America" in Miami on May 11, 2016. The actress has never commented on rumors that she's gone under the knife — except to say that her lips are real.

Considering the fact that Nicole Richie probably weighed just 90 pounds sopping wet, it makes sense that she wasn't the bustiest celeb on the beach back in 2006. But could she fit into that same bikini top today?

Not a chance. Nicole Richie traded in her flat chest for a fuller one sometime before she rocked a bikini in Mexico in September 2011. The breast augmentation was a total about-face for the former reality TV star, who had previously said she hated having big boobs while nursing her daughter, Harlow. What a difference three years make!

Madonna has maintained her popularity over the years as a result of her ability to piggyback on whatever trend happens to be en vogue. But have you noticed just how different she looks now compared to back in the late '80s?

Madonna — who was practically wrinkle-free during the 2016 Billboard Women in Music event — is arguably showing her age in that she's not showing her age. We eagerly await her continuing transformation over time.

Since starring as Sharpay in 2006's "High School Musical," Ashley Tisdale (pictured in 2007) has become an idol to tween and teen girls everywhere. But would those same girls recognize her today?

Maybe not! In late 2007, Ashley Tisdale (pictured in 2012) got her schnoz redone — supposedly because her septum was 80 percent deviated and she had two small fractures in her nose.

We hardly recognize Nicole Kidman in this still from the 1989 film "Dead Calm."

The change in Nicole Kidman's look could be credited to the gradual loss of baby fat, but the actress (pictured in 2011) has admitted that she once had a Botox habit. We're glad she gave it up — because she looks better when she can smile!

Back in 1999, at the dawn of her "American Pie" fame, Tara Reid was Hollywood's hottest "it" girl. She had all-American looks that most girls would give anything for. But sadly, she didn't see herself that way…

Tara Reid's blonde hair is about the only thing that hasn't changed since her "American Pie" days. The actress (pictured in 2015) has spoken candidly about her plastic surgeries and how they, in combination with her "Taradise" antics, canned her career.

Face. Of. An. Angel. Seriously, Mickey Rourke must have known that a gift like his should be treasured, right? He looked absolutely gorgeous in 1986's "9½ Weeks."

Mickey Rourke (seen here in 2010) went under the knife to get reconstructive surgery after his face was badly damaged during his stint as a boxer. Unfortunately, he went to the wrong doctor. "Most of it was to mend the mess of my face because of the boxing, but I went to the wrong guy to put my face back together," he told MailOnline in 2009. "I had my nose broken twice. I had five operations on my nose and one on a smashed cheekbone."

Back in 1993, Tori Spelling was one of the shining young stars of "Beverly Hills, 90210." More than 20 years later, she's still around. But would you recognize her?

Kelly Martin might have been the West Beverly High kid who went under the knife, but in real life, it was Tori Spelling (pictured in 2007) who paid a visit to the plastic surgeon's office. Instead of getting a new nose à la Kelly, the actress opted for larger breasts. If only she knew that she'd get 'em for free — thanks to being pregnant for half of her adult life — she might have saved herself a few thousand dollars!

No, that's not Joanie from "Happy Days." It's Pamela Anderson in an undated photo from her pre-fame days!

Pamela Anderson has never shied away from discussing her history with plastic surgery. Though she's since adopted a new, demure look, this photo of her from 2011 is how we think of her most frequently: big hair, big lips and big… other things.

Back in 2009 — before she had work done — NeNe Leakes was all smiles at the Wonderlust Live concert.

In 2011, NeNe Leakes (pictured in 2016) fessed up to getting a nose job, liposuction around her waist and a breast reduction and lift. "I still wanted to look like NeNe, the black woman that I am, but a better version," she told People magazine.

Courtney Love has gone through quite a few phases over the course of her time in the spotlight. (Some more conscious than others.) But did you know that the Hole frontwoman has changed her physical appearance as well?

Blame the passage of time if you like, but it is interesting how Courtney Love's face looked thinner in some spots and plumper in others during the 2011 Cannes Film Festival than it did early in her career. In the end, she doesn't look all that much like the rocker chick she used to be. But maybe that's just us.

"Teen Mom 2" star Jenelle Evans (pictured in 2011) was just an average North Carolina high school student before her son, Jace — and MTV — came along. So did she stay true to her roots despite her stardom?

Reality star Jenelle Evans admitted to getting breast implants in 2012 and temporary lip fillers in 2016.

Jennifer Grey (pictured in 1987) had one of the most famous faces of the '80s, but that all changed after she went under the knife.

Jennifer Grey's career hit the skids after she changed up her nose in the early '90s — and became completely unrecognizable. "I went into the operating room a celebrity and came out anonymous," she told The Mirror in 2012. "It was the nose job from hell. I'll always be this once-famous actress nobody recognizes because of a nose job."

Obviously, this plucky redhead is a young Kathy Griffin, who's clearly had some work done since this photo was snapped in 1999.

These days, Kathy Griffin (pictured in 2011) sports a less rounded face and more pronounced features. And she'll gladly tell you all about it. She's openly discussed her head-to-toe transformation in her stand-up routines, on her reality show and in her book. And that, at least, is a refreshing change from the typical celeb mindset of "If I don't admit I had plastic surgery, no one will know."

Melanie Griffith (pictured in 1987) inherited mother Tippi Hedren's naturally good looks, but was she satisfied with them? See for yourself!

In early 2017, Melanie Griffith (pictured in 2010) told Porter magazine that she didn't realize the plastic surgeries "she had over 20 years ago" had changed her looks so dramatically until other people started pointing it out. "I was so hurt," she said. "I went to a different doctor, and he started dissolving all of this s— that this other woman doctor had put in. Hopefully, I look more normal now."

Do you recognize this svelte, sweet-faced star? It's Aubrey O'Day at a Danity Kane listening party in New York City in 2006.

Though Aubrey O'Day maintains that she's never gone under the knife, her bust certainly appeared augmented when she posed on the red carpet during the NBC Universal Summer Press Day in Los Angeles on April 1, 2016.

Can you believe this is a 16-year-old LaToya Jackson back in 1972?!

Curiously, despite their separate surgeries, LaToya Jackson (pictured in 2011) still strongly resembles her late brother, Michael Jackson, who also went under the knife.

Though Rupert Everett is clearly a talented actor, his gorgeous face certainly didn't hurt him when it came to winning roles. Surely he wouldn't alter something so key to his appeal, right?

Rupert Everett seemed to be wearing fewer years on his face when he visited the "Loose Women" studio in London on June 29, 2016. He's denied that plastic surgery was responsible for the turning back of time, but how else do you explain the fact that he had far fewer wrinkles in 2016 than in 2007?

Janice Dickinson (pictured in 2004) often calls herself the world's first supermodel, and it's easy to see why she dominated the fashion industry during the prime of her career! But nothing lasts forever…

Janice Dickinson didn't shy away from addressing her experiences with cosmetic surgery in her 2004 memoir "Everything About Me Is Fake… and I'm Perfect." That sums it up pretty well, doesn't it? She's fessed up to having her breasts augmented and to getting a tummy tuck, neck and face lifts, liposuction and Botox.

The pouf hairdo and dramatic eyeliner date this photo, but Priscilla Presley's beauty is timeless. A face like that might be adored in any decade, but how much does she look like she did in 1968 these days?

These days, Priscilla Presley (pictured in 2011) looks notably different. And though she's kept quiet on the subject of plastic surgery, a 2008 article in the London Evening Standard claimed that the former Mrs. Elvis Presley had gotten work done — by a phony surgeon being prosecuted for operating without a license.

Sylvester Stallone (pictured in 1981) is one of the most instantly recognizable stars in Hollywood. Surely, he wouldn't fiddle with that famous face, right?

We'll say this much: We assumed that Sylvester Stallone would be a "smooth" guy, but we didn't necessarily think he'd be physically smooth. Good genes, maybe? The iconic actor sported nary a wrinkle during the 31st Annual Santa Barbara International Film Festival in February 2016.

The cool thing about watching reruns of "Roseanne" is that you can immediately estimate what season you're watching based on Roseanne Barr's looks. But what does the comedian (pictured in 1987) look like today?

Roseanne Barr, who looked great during the mid-2016 photocall, has changed up more than her 'do over the years. She's reportedly had her breasts reduced and got a tummy tuck and a nose job.

Jada Pinkett Smith (pictured in 1998) stepped onto the scene in the '90s with a fresh face and cool attitude. How have things changed for Will Smith's missus?

Jada Pinkett Smith turned heads during the premiere of "Madagascar 3: Europe's Most Wanted" in June 2012 by sporting a cheekier look that usual. Rumors swirled that the actress had gotten either cheek implants or injections. What do you think?

Joan Van Ark (pictured in 1987) rose to fame by embodying wealth and glamour on "Dallas" and "Knots Landing." But did she take those Ewing family values too seriously in real life too?