Fergie's fierce frame doesn't come without sacrifice. Last week, at Billboard's annual Women in Music event in New York City, she told The Huffington Post that after pigging out at Thanksgiving, she's back to eating healthy and "working out like a mad woman." In the May issue of Elle magazine, the Black Eyed Peas singer, 35, opened up about how she stays away from not-so-good-for-you foods. "I'm not going to lie: There are times I play mind tricks on myself, like that the French fries are poison," she said. "With desserts, I'll let myself have just one bite, but I'll look like a freak when I'm eating it, like when I did Duncan Hines commercials as a kid, just savoring every morsel."
But some celebrities do fall off the wagon. Post-Thanksgiving, Kim Kardashian took to Twitter to reveal that she's sweating it out again after an eight week break from the gym. "I hit the gym hard today!!!!," she tweeted on Nov. 26. "I fell off for 8 weeks in NYC BUT IM BAAAACKKKK!"
Last year, the 30-year-old reality TV star slimmed down from a size 6 to a size 2 before the launch of her fitness DVD, "Fit in Your Jeans by Friday." She shed weight and toned up with an intense workout routine and a macrobiotic diet. But the holidays could wreck havoc on Kardashian's progress. While she told ABCNews.com last month that she doesn't "really like Thanksgiving food that much, so I'm not really worried about overeating," Christmas is another story. "My mom has the best Christmas cookies, in the shapes of Christmas trees and candy canes," she said. "I could eat a bunch of that." Better keep working those assets, Kim.