The star of Hart of Dixie swears she isn't a gym rat—even if her bikini body begs to differ. She told Women's Health that her favorite form of exercise is dancing or "some sort of sport." Instead of hitting the gym, Rachel says she prefers playing tennis with friends, hiking, or popping in a yoga DVD.

Want a body like Rachel's? Try this total-body yoga workout.

When it comes to looking flawless on the red carpet, Nicole nails it every time. The reason: She knows how to show off her best assets—like her envy-inducing arms. Tone your upper body with this 15-minute arm-sculpting workout, and rock a strapless gown like Nicole's with confidence.

The Cougar Town star stays in amazing shape with interval training. Courtney's trainer, Michelle Lovitt, varies her cardio between the elliptical and treadmill, then adds in resistance-band and power-plate strength training.

Use these tips to shake up your own cardio routine.

Even after two kids, Jennifer's body is as toned as ever. The key to her famously fit backside: her trainer Gunnar Peterson guides her through lower-body exercises like weighted sumo squats, single-leg squats, and reverse lunges to front kicks.

Let's face it, Madonna makes over 50 look good. Her super-toned body stole the show during last year's Super Bowl half-time performance, and it's rumored that she had a hydraulic yoga mat installed in her hotel room to keep her fit before the game!

For arms as amazing as Madonna's, try these 9 fat-blasting moves.

Nicole's trainer, Adam Ernster, likes to focus on building muscle, which the singer supplements with running, dancing, and plenty of squats.

Sculpt a butt as show-stopping as Nicole's with this lower-body workout.

The Sports Illustrated swimsuit model has a kick-butt workout—literally. Her trainer takes her through different martial-arts style kicking sequences that work the abs, butt, and legs.

Kickboxing is a calorie-blasting powerhouse workout for the whole body. Try this do-anywhere routine with muscle-sculpting moves.

The Fast & Furious 6 star sure knows how to show off her assets. But she puts in a lot of hard work to get that head-turning body. She recently told Women's Health that she does strength training at least twice a week, practices yoga or Pilates three or four times a week, and even adds a little muay Thai to that.

Check out the five moves that earned her that enviable rear view.

Gwen's abs are still as amazing as ever—even after having two kids. But the singer swears she doesn't have a magic workout regimen. Instead, she told Harper's Bazaar that she eats healthy, works out, and gets her cardio in by dancing around the stage during performances.

Gwen's body is proof that you don't need a boring fitness regimen to stay fit. Check out this playground-inspired workout that torches calories while you're having fun.

The singer wowed everyone in this daring dress at the Grammy Awards, but there was no doubt that Kelly had the body to pull it off. She told Us Weekly that she does 45 minutes of ab work every night. Plus she makes sure to keep her core engaged at all times—from walking around to dancing her butt off on stage.

Getting ready to don a dress as bold as Kelly's? Get your abs in amazing shape with this workout.

The Smash star has a super crazy schedule, but she still finds time to sneak in a workout. Her secret: ankle weights! Katharine told Women's Health that they're great for impromptu exercises in her trailer.

And to add fuel to her workouts, she likes to blast The Bodyguard soundtrack! For more awesome songs to add to your gym playlist, check out our favorite picks.

Kerry's Scandal character may be known for her amazing outfits, but it's the star's seriously toned body that got our attention. Kerry tones up with Pilates instructor Nonna Gleyzer, who gave us a sneak peak at their fat-blasting workout routine. Get ready to feel the burn in your abs and butt!

The secret to Jessica's trim figure is having fun with her workouts. She recently told Women's Health that she mixes up her fitness routine with everything from dance and hip-hop classes to indoor cycling and sprint intervals. "Anything where I have to do something but I can get my mind off of doing it, that's so much better for me than anything that's repetitive. Or the music has to be loud and I have to be moving," says Jessica.

Ready to have way more fun with your workout? Check out our guide to the freshest new group classes.

When she's not surfing, the 40-year-old SoCal native sculpts her long legs and tightens her tummy by joining trainer Teddy Bass in the gym—three or four days a week, 60 minutes a session—for either Pilates, cardio, weight training, or a mix of all three!

Want to score a surfer chick's body—even if you're miles from the water? Check out these moves that work the same muscle groups you would on the waves.

This tough-love celebrity trainer is known for her hardcore workouts and rock-solid physique. It's no wonder that Jillian considers her abs to be her favorite body part—have you seen them!? Ready for that same kind of confidence? Try her four favorite ab-sculpting moves.

From the choreography on Glee to her performances on tour with the show, Naya is bound to burn major calories at work. But she also swears by indoor cycling and hot yoga to stay in awesome shape.

Ready to get in on the hot yoga trend? Everything you need to know to sweat it out on the mat.

From the big screen to the red carpet, Jennifer's body always looks flawless. Her secret: a combination of hardcore cycling and super-toning yoga with trainer Mandy Ingber.

Get Ingber's exclusive workout tips here.

From the look of those abs, it didn't take too long for Pink to bounce back after the birth of her daughter, Willow. Pre-baby, the singer told Women's Health that her workout routine consisted of an hour of cardio, an hour of P90X or yoga, and a half-hour of warm-up for her shows.

Experiencing ab envy? Learn how to get flatter abs in just weeks.

Jessica's super-fit body is the result of training sessions with Robert Dos Remedios. Check out his tone-up secrets for buff shoulders, lean legs, and a tight butt!

Maria is more than qualified for her role as one of the judges on our upcoming challenge, "The Next Fitness Star." The 34-year-old says her secret is constantly switching up her workouts. "I change it up and exercise outside, like playing volleyball on the beach. That way, I never feel like working out is a chore—it's just fun!" she told Fitbie. And there's also the fact that she grows her own food—seriously! She tells Fitbie that having her own garden motivates her to eat better.

Join Maria and the rest of the judges in picking the Next Fitness Star!