[artist id="1245169"]Jessica Simpson[/artist] has added a new hyphenate to her resume: She's now a mom! The singer/actress/fashion mogul and her fiancé, Eric Johnson, welcomed a nine-pound-13-ounce baby girl named Maxwell Drew Johnson, she announced on her website.

It's the first child for the couple, who got engaged in November 2010. Simpson confirmed that she was going to be a mom in the punniest way around on Halloween 2011 when, after much speculation about her expanding waistline, she posted a photo of herself and her baby bump dressed up as a "mummy."

Of little Maxwell, she told Elle that she had the baby's name picked out for some time and wanted it to be personal to her. "It's nothing shocking and nothing you'll have to add to the dictionary," she said about her daughter. "Still, when people hear it, they'll know ... why."

As for marrying Johnson, she shared with Jay Leno that she wants to wait until she can wear a properly pretty wedding dress again in a svelte frame. "I want him to be my husband so bad. I do still want to wear the pretty gown and everything, and I have to wait till after the baby. Now she'll just be in the wedding," she said about her plans to marry the former football player and including their baby girl in the wedding ceremony.

Currently, Simpson is one of the mentors on NBC's fashion reality show, "Fashion Star," where she appears alongside fellow fashion entrepreneurs and designers Nicole Richie and John Varvatos. Now, it seems that she has a new mentee in Maxwell.

During promo for the show, shortly before she gave birth, she joked about her very, very large size to Ellen DeGeneres on her talk show, placing all the blame on her fiancé. "Believe it or not, there is only one girl, but I did get knocked up by a baller," she laughed. "A big football player. That's what I get. He's like 6'4"."

In March, Simpson celebrated her impending motherhood with a celeb-attended baby shower. "Grey's Anatomy" star Ellen Pompeo, Jessica Alba and little sister Ashlee all turned up at the baby-friendly fete to bestow her with all the gifts she'll need now that she's added "mom" to her already busy resume.

In the weeks leading up to the birth, it felt like Simpson had long-extended her due date. She even joked about the highly--anticipated birth on her Twitter, writing, "To everyone who keeps congratulating me on the birth of my baby girl...I'm still pregnant!! Don't believe what you read ladies and gents."

Days later she added, "I just woke up from a dream that I wore a leopard caftan in the hospital. Fabulous!! Now I need to find one!" No confirmation if a leopard caftan was worn in the hospital at the time of the birth, but given Simpson's love for style MTV News is sure she looked perfectly stylish.

In the lead-up to the baby's birth, Simpson had many people, including Katy Perry, wondering when she might give birth. Perry joked, "Has Jessica Simpson had that baby yet?! I'm getting anxious."

Weeks later, Perry's anxiety should have gone away, when Simpson's family was spotted entering an L.A.-area hospital on May 1.

Share your well wishes for Jessica and Maxwell in the comments!