© Daniele Venturelli - Getty Images "The Voice" star Gwen Stefani looks as youthful as ever by following these skincare, fitness, and nutrition tips.

It's hard to believe it's been 15 whole years since Gwen Stefani released her pop hit song "Bananas," but do you know what's even more mind-boggling? The American singer celebrates her 50th birthday Oct. 3.

Stefani is an icon in the music industry, whether you know her from her '90s rocker days, her solo pop music career, or her seasons as a coach on The Voice. Throughout the years, the star's style has always remained edgy; you'll never catch her without platinum hair or cherry red lipstick.

While you watch her crush a performance on her Vegas tour or The Voice, you may be wondering how the star looks so ridiculously youthful—and absolutely ripped—at 50. Here are Stefani's best skincare, fitness, and nutrition tips that you can copy:

View this post on Instagram A post shared by Gwen Stefani (@gwenstefani) on Jun 23, 2019 at 11:21pm PDT

1. She stays out of the sun.

Joining other ageless celebs like Drew Barrymore and Jennifer Garner, Stefani protects her complexion from the sun, and it pays off. "You definitely see it as you get older. Later in life, you're like, 'What is that?!' and it turns out it's from the sun and you're like, 'Oh why did I do that to myself?'" Stefani told Elle.

"That said, growing up in California, I was pretty good," she continued. "Not when I was a kid, but once I hit my twenties." Her number one skincare tip again for the folks in the back: "Stay out of the sun!"

2. She takes her makeup off every night.

Stefani admittedly wears a lot of it (she was a makeup artist in her twenties!), but it's all for the performance factor.

"I do my own makeup whenever I play live," the singer told Cosmopolitan. "I don't know what it is, but something about that whole kind of war paint, you know, putting it on, building the confidence. Once I get the makeup on, it's show time, I've said that for years and its so true."

View this post on Instagram A post shared by Gwen Stefani (@gwenstefani) on Sep 14, 2017 at 7:34pm PDT

Afterward, she always removes her makeup to keep her pores fresh and clean throughout the night. "The one thing that I have really changed is trying to get all the makeup off," she told Elle. "It was hard when I was younger because I was always on a tour bus, literally washing my face with bottled water, inside a bus. But the key is to keep it clean at night [and] let your face breath because I really don't let it breathe at any other time."

3. She wears drug-store makeup.

Thats right! The former makeup artist could buy any fancy beauty product in the world, but she loves to hit up the drugstore or grocery store to stock up on products.

"I've always been into grocery store makeup," The Voice star told Cosmopolitan. "From a little girl going to Sav-on's. I would find myself down the aisles, fantasizing about makeup."

She's a fan of one brand in particular: "That's what's great about Revlon, they're all the same products as high-end brands and they work just as well as the expensive versions," she said.

View this post on Instagram A post shared by Gwen Stefani (@gwenstefani) on Sep 23, 2019 at 10:36pm PDT

4. She gets her rest...or fakes it with makeup.

Stefani says her number one tip for making her skin glow is getting enough sleep. "However, second to that, I think a lot of people will just keep piling one more makeup, more powder," she told Elle. "Sometimes, if I have a really long day, I'll just wash it all off and start over again for that fresh-face feeling."

5. She works out four times a week.

To maintain her ripped abs at 50, Stefani works out four times a week for 60-75 minutes per session. Her former personal trainer Mike Heatlie spoke with Shape, saying that his sessions include a mix of HIIT and cardiovascular training. "My clients will adopt maybe four to five exercises and perform them without any rest between sets and then do one to three minutes of high-intensity cardiovascular work," he said.

Today, Stefani trains with celebrity trainer Gunnar Peterson, targeting cardio. "Focus on cardio that uses your whole body to challenge more muscles and burn extra calories in less time," Peterson told Fitness Magazine. "Try rowing. "It's easy on joints and works every muscle."

6. She eats a mostly vegan diet.

Eating healthy is equally important to Stefani, and it shows. The star follows a mostly plant-based, vegan diet. She began following a vegetarian diet at age 12.

And as the star has been gushing over her longtime boyfriend Blake Shelton, it's fair to say that Stefani might have a little love glow on top of it all. Regardless, she looks incredible, and we bet her 50th year will be just as amazing for her as ever.

View this post on Instagram A post shared by Gwen Stefani (@gwenstefani) on Apr 25, 2019 at 10:34am PDT

Slideshow: These 40 fit celebrities over 40 will inspire you to hit the gym (Provided by Prevention)

