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Shemar Moore - Fitness has always been a big part of Shemar Moore's life and he played baseball, football, and track during his youth. Today, he's into cycling and participates on charity rides for MS organizations. (Photo: Manuel Munoz, PacificCoastNews.com)

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Teyana Taylor - Teyana Taylor works out her butt by walking backwards on her treadmill and tones her arms and legs by lifting weights while doing squats and lunges. (Photo: FameFlynet)

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Ciara - Ciara took to high school track and cheerleading during her high school years and still enjoys lifting weights to prep for her high-energy concert tours. She works out with her trainer for an hour a day, five to six times a week, doing cardio and ab workouts and watches what she eats. (Photo: Brian Dowling/PictureGroup)

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Lance Gross - Lance Gross was a former running star who got a full track and field scholarship to Howard University before deciding to pursue acting. (Photo: GHOST/Fame Pictures)

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Serena Williams - Serena Williams' workout routine consists of endurance drills, cardio, core strengthening, and exercises to increase flexibility and prevent injuries. She also does Bikram yoga and Pilates a couple times a week. (Photo: Rachid Ait/Thibault Monnier/PacificCoastNews.com)

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Reggie Bush - Reggie Bush uses the Fre Flo Do, a workout regimen that takes place on a constantly moving treadmill-like launch pad that encourages free-flowing movements. (Photo: Jamie Squire/Getty Images)

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Elise Neal - Elise Neal is all about moderation with food and Barry's Bootcamp. (Photo: Kevin Winter/Getty Images)

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Jada Pinkett-Smith - Jada Pinkett-Smith sticks to a high protein diet with lots of vegetables and chicken and enjoys kickboxing, sculpting exercises, and stretching those muscles out. (Photo: Pascal Le Segretain/Getty Images)

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Trey Songz - Trey Songz takes to doing about 200 pushups a day and squeezing in swimming and working out for an hour or two if there's a fully-equipped gym at his hotel. (Photo: Kevin Winter/Getty Images)

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Janet Jackson - Janet Jackson struggled with her weight for years, but has recently toned her figure by watching what she eats, staying away from the scale and extreme diets, and now serves as spokesperson for the NutriSystem weight loss program. (Photo: Andreas Rentz/Getty Images)

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Nick Cannon - Nick Cannon loves boxing to develop quickness and build upper body strength. (photo: John Ricard / BET)

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Jeanette Jenkins - Jeanette Jenkins, also known as the Hollywood Trainer, has an impressive client list of A-list celebs, and a wide collection of health and fitness DVDs. (Photo: A. Turner Archives/PictureGroup)

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Kelly Rowland - Kelly Rowland says she follows the 80/20 rule with healthy foods most of the time and then indulging on whatever she wants 20 percent of the time. She also heads to the gym every other day for at least an hour and practices yoga, spinning, and pole dancing. (Photo: REUTERS/Mario Anzuoni)

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Angela Bassett - Angela Bassett keeps her workouts short, but makes sure she's consistently exercising five days a week with some circuit training and jumping rope mixed in. (Photo: Alberto E. Rodriguez/Getty Images)

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Flo-Rida - Flo-Rida dedicates at least 45 minutes for cardio workouts to beat off exhaustion during his travel and touring. (Photo: Brian Ach/Getty Images)

Photo By Photo: Brian Ach/Getty Images

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Naomi Campbell - Naomi Campbell has given up gluten and meat and does gyro-tonic workouts at the gym to tone and lengthen her muscles. She even jumps rope to keep her face firm. (Photo: Vittorio Zunino Celotto/Getty Images)

Photo By Photo: Vittorio Zunino Celotto/Getty Images

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Mehcad Brooks - Mehcad Brooks says he just tries to work out more often than not and credits his mom for teaching him the value of consuming healthy food.(Photo: Andrew Eccles/USA Network)

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Gabrielle Union - Gabrielle Union keeps her sleek physique by working out two hours a day, five days a week and doing Pilates with cardio to keep her body well-toned.(Photo: BRJ/Fame Pictures)

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Mel B - A post-pregnancy stint on Dancing with the Stars got Mel B hooked on the new active lifestyle. So much so that she then released a workout DVD, Totally Fit: Mel B, to show the rest of us how to slim down. (Photo: Adrian Varnedoe, PacificCoastNews.com)

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LL Cool J - LL Cool J lifts weights and uses different rep ranges and lifts at different angles to stimulate as many parts of his muscles as possible. (Photo: Michael Loccisano/FilmMagic)