College friends Gillian Marloth and Teigh McDonough have always been involved in athletics—from dance and ice skating to gymnastics and yoga. Years after college, they used their love of fitness to come up with Yoga Booty Ballet, a workout program that incorporates yoga, body sculpting and dance. "It's very creative, it's fun, it's silly, it's expressive ... it also gives great results physically," Teigh says.

Despite its fun and goofy name, Gillian says Yoga Booty Ballet is rooted in spirituality. "One of the agendas that we promote is being affirmative, and being positive and taking action with your life," she says. Teigh says the upbeat workout transforms lives from the inside out. "It addresses a lot of layers, it works on people's self-esteem and we use visualization, we use positive mantras, and it is also a [great] workout," she says. "You are dripping in sweat when you are done."

With a studio located in Los Angeles and 17 different Yoga Booty Ballet DVDs sold nationwide, Gillian and Teigh say their booty-shaping style of fitness is catching on in a major way—but they're just starting. "I think we've got more people to reach and more to do," Gillian says