Pop Stars Who Lost The Weight and Look Great!

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Beyoncé Knowles—Then (2011)

Pop sensation, Beyoncé, shared news of her pregnancy in August of 2011 after a VMA performance. She welcomed daughter Blue Ivy Carter on January 7, 2012. Despite "Bump Gate" rumors that she faked her pregnancy, she looks like a happy, glowy and (naturally) expectant mother in this red carpet photo.

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BEYONCE SCREENING

Singer Beyonce hosts the screening of 'Live at Roseland: The Elements of 4' at the Paris Theatre on November 20, 2011 in New York City

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Beyoncé Knowles—Now

In an interview, Bey reveals that one vegan meal a day kept the baby weight at bay. After gaining a reported 57 pounds during her pregnancy, Beyoncé worked hard to drop the weight, admitting it took hard work and a healthy diet. And all the hard work Bey did on her secret album Beyonce paid off!

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Christina Aguilera—Then (2011)

After being used to seeing Xtina in bare midriffs and later fishnets and corsets that showed off her, um, assets, the then-newly minted host of The Voice garnered a ton of media scrutiny over gaining a few obvious pounds.

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Christina Aguilera—Now

As soon as The Voice premiered, the media pounced on Aguilera's weight gain, and even cohost Adam Levine was asked to comment by Howard Stern (of all the sensitive people). Christina defended herself, saying, "I have a boyfriend that loves my body. I love my body, my son is healthy and happy and that is all that matters." But despite that statement, Christina got svelte and ready for season 3 of The Voice.

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Chaka Khan—Then (2010)

"Every Woman" Chaka Khan has been in the music biz for nearly 40 years and with her power anthems has inspired fellow musicians and fans alike. But in the past few years, the 10-time Grammy winner was not looking as svelte as she would have liked. But with her recent weight loss, some speculated she may have had some help slimming down with surgery.

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Chaka Khan—Now

Khan told the Huffington Post that her weight loss was actually triggered by a scary diagnosis of type 2 diabetes and the fact that she recently adopted her granddaughter. She explained, "I adopted her, so I have to be here.... [She] was really my first and major influence to lose weight and get healthy so I can be here for her."

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Janet Jackson—Then (2008)

Janet Jackson—and her weight—has been scrutinized by the media and public since her debut on The Jacksons TV show in 1976. And as an adult, her sexually charged videos and records have made her body the center of much attention. So when the singer packed on 60 pounds for a film role, the media pounced.

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Janet Jackson—Now

Jackson has since shed those 60 pounds and looks her usual, incredible self again. But the best part of that experience was the fact that her then-boyfriend, Jermaine Dupri, loved her extra curves. Like many women (amirite, ladies?), Janet's weight has fluctuated over the years but she now looks hotter than ever at 47 years old. Before They Were Stars: Check out this hot photo gallery on The Jackson Clan!

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Jennifer Hudson—Then (2006)

America was introduced to Jennifer Hudson back in 2004 on Amercian Idol. She was booted off early, even though her talent was clearly stellar. It was a happy surprise to learn she had been cast in her Oscar-winning role as Effie in Dreamgirls. Whether on the red carpet or in the movies, she always carried off her curves with exuberant mojo and sassy attitude.

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Jennifer Hudson—Now

After giving birth to her son David, Jennifer Hudson started working out and cutting calories using Weight Watchers (remember that epic Oprah episode where she wouldn't tell Lady O how much she lost! Don't make Oprah mad!). She later admitted to losing an incredible 80 pounds, going from a size 16 to a size 6. She continues to be a Weight Watchers spokesperson today and is looking fan-freakin-tastic.

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Jordin Sparks—Then (2007)

Sparks is the perfect last name for this vivacious performer. She won the sixth season of American Idol with her tremendous stage presence—well beyond her 17 years—and big voice. Her father is former New York Giants cornerback Phillippi Sparks—and with those genes it's no wonder Jordin grew to reach a very healthy-looking six feet tall!

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Jordin Sparks—Now

All grown up now, Jordin has shed her more girlish looks and has embraced and improved her curves. After touring with headliners like Alicia Keys, the Jonas Brothers, and Britney Spears and massive radio hits like "No Air," the singer dropped 50 pounds. She starred in the movie Sparkle—with the late great Whitney Houston.

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Kelly Clarkson—Then (2009)

Not only did Kelly Clarkson win the first season of American Idol, she went on to become an international pop sensation, having sold over 20 million records worldwide. The two-time Grammy winner has been criticized in the media for her weight and style choices throughout her career, but since she began her stint as a judge on Duets, Kelly has emerged a new woman!

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Kelly Clarkson—Now

Clarkson has reportedly dropped 30 pounds with the help of her now-husband Brandon Blackstock's trainer. The subject of her weight still makes Clarkson uncomfortable, and she insisted to Nightline, “I sound the same regardless if I’m 20 pounds heavier or 20 pounds lighter, and I think that’s the key thing with my fans and why they continue to be loyal…"

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Lauren Alaina—Then (2011)

Lauren Alaina charmed America on the 2011 season of American Idol with her incredible vocal talent and sparkling personality. She lost the title to Scotty McCreery, but it was clear the country music industry would be ready to snap her up. Soon after Idol, Alaina signed a record deal with Interscope/Mercury Records and released her first album, Wildflowers, on October 11, 2011.

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Lauren Alaina—Now

Before Lauren turned 18, in order to match her new grown-up age, the singer got a new look. She's trimmed down and toned up and looks more sophisticated—reminds us of her fellow Idols Carrie Underwood and Kellie Pickler! Either way, Lauren is a breath of fresh air in this industry!

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Mariah Carey—Then (2010)

Mariah Carey has battled with her weight on and off for years. She has been very public about the very strict diets she has put herself on to slim down for tours and photo shoots. But after giving birth to twins, she got very serious about getting that baby weight off.

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Mariah Carey—Now

Mariah Carey tweeted pics of her huge baby bump before giving birth to Moroccan and Monroe on April 30, 2011—also her third wedding anniversary! She quickly became the spokeswoman for Jenny Craig and shed a remarkable 70 pounds! Carey joined Randy Jackson and Nicki Minaj to judge of the rather tense twelfth season American Idol.