She only gave birth to baby Blue Ivy on January 8, but Beyonce has already been whipped back into shape.

And the megastar revealed her weight loss secrets to an awe-inspired crowd at Sunday night’s Atlantic City concert, which as RadarOnline.com reported, included Michelle Obama and her two daughters, Sasha and Malia.

PHOTOS: Beyonce Returns To Performing

During the second show in her her four-date stint at Revel Beach Ovation Hall in Atlantic City, the 30-year-old star announced: “Y’all have no idea how hard I worked.

“I had to lose 60 pounds. They had me on that treadmill. I ate lettuce!”

Paula Deen has attracted criticism for the high amounts of salt, fat and sugar in her recipes. And the debate around the controversial southern chef intensified after she went public with her type two diabetes diagnosis earlier this year and then went on to sign a deal to promote medication for the condition.

Many saw it as gross hypocrisy to make money shilling a medication while promoting the kind of gluttonous diet that can lead to obesity; which is a huge causal factor in developing the disease.

It's only been one week since Jessica Simpson gave birth to her first child, and she's already locked up a lucrative deal to lose the baby weight.

According to ABC News, the 31-year-old singer signed a $3 million deal with Weight Watchers in which she'll showcase her fit post-baby body in their national campaign.

Hollywood stars will go to any lengths for their craft, even when their health is at stake!

From dangerous dieting and rigorous exercise to packing on the pounds with junk food, a bevy of stars have dangerously and dramatically transformed their bodies for a movie role, putting themselves in harm’s way. RadarOnline.com has photos of 10 stars who have dangerously dropped pounds, gained weight and buffed up for movie roles.

Talk about an interesting marketing approach!

In an upcoming Weight Watchers campaign targeted at men, Charles Barkley dresses up like a woman in a sexy halter dress, high heels and wig – and RadarOnline.com has the hilarious photo.

Is Princess Eugenie getting a little inspiration from her super skinny cousin-in-law Kate Middleton?

Prince William's beloved cousin, who gained notoriety after she and her sister Princess Beatrice committed a fashion faux pas at the Royal wedding, hit the town in London on Thursday night to celebrate her 22nd birthday, showing off her newly slimmed down figure in a curve-hugging dress.

Who will be the weight loss winner of this season’s Dancing with the Stars ?

Though it’s impossible to tell at this point, RadarOnline.com has exclusive details about which of the stars and dancers are dieting using Freshology’s Getslim with the Stars meal delivery program, as well as a sneak peak of this week’s menu!

Don’t expect Mila Kunis to go under the knife – in the next decade at least!

The Friends With Benefits actress and the new face of Christian Dior opens up about plastic surgery in the April 2012 issue of Harper’s Bazaar magazine – and RadarOnline.com has the details.

Now that the celeb cast of the fourteenth season of Dancing with the Stars has been announced and paired up with the pros it’s time to get down to business -- and get into shape for the big show!

RadarOnline.com has exclusive details about how this season’s contestants are slimming down and getting their bodies ready to hit the stage.