They Do What? 10 Outrageous Star Fitness Tricks

KIM SLEEPS IN GYM CLOTHES

she motivates herself to hit the gym – any way she can! "Is it weird if I sleep in my workout clothes so I can get up early at 6am & work out?" Kardashian Tweeted recently. She explained her rationale, writing, "It will force me to & save time!"

KATY JUMPS ROPE

she stays fit by embracing her inner schoolgirl. "I hate working out, but I love jumping rope," says the "Waking Up in Vegas" singer. "There's a rhythm. It's like dancing." And she's no schoolyard novice. "I can double jump; I can cross. I can do all of it. I look like Rocky when I jump..

JESSICA DROPS IT LIKE IT'S HOT

keeps her glutes Daisy Duke-worthy by doing a booty dance! The singer recently posted on Twitter that trainer Mike Alexander (who sculpted her silhouette for 2005's The Dukes of Hazzard) "yells at me 'get lower like you're in the club.'" Her comical response? "I don't squat in a club unless I'm peeing!"

MICHELLE WORKS OUT BEFORE SUNRISE

To squeeze exercise into her packed schedule she rises at 5:30 a.m. and exercises "pretty religiously" with husband Barack Obama in the White House's private gym, she tells PEOPLE. But the first lady – who's earned accolades for her ultra-toned arms – says she's not quite as diligent as the President. "I can skip a workout. He really can't," she says with a laugh.

MARIAH EATS ARTICHOKES

Forget chocolate! she's go-to snack food is a healthy serving of artichokes! The vegetable is high in fiber – averaging 9 grams per cup! – meaning it can leave you feeling more full and less likely to snack. Most of us only get half the daily recommended 25 grams of fiber, so doubling up on servings could cut 100 calories from your day.

MEGAN DRINKS VINEGAR

Red-carpet bombshell says she counters the effects of her "really big sweet tooth" by drinking apple-cider vinegar and water. "It cleans out your system," she says. Another fan of the apple-cider cleanse? Fergie!

BEYONCÉ SETS PACE – BY SONG!

Instead of counting reps, she has a more musical approach to her workouts. "I'll put on a song that I really like and do [biceps curls with] 5-lb. weights the whole song," the singer told Self magazine. Another upper-body trick? She'll box for the length of one track using 3-lb. weights.

LUANN STANDS ON HER HEAD

Countess LuAnn de Lesseps credits her glowing complexion to turning her beauty routine upside down. "I do a yoga headstand every morning. I don't do Botox. Headstands are great for getting the circulation going and giving tone to your muscles in the face," says the Real Housewives of New York City star and Ashtanga yoga devotee.

CAMERON EATS DINNER FOR BREAKFAST

Forget eggs! she loads up on garlicky chicken in the morning before heading out to surf. "It's the best breakfast in the world," the actress has said of her protein-rich way to start her day.