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Stars' Workout Shout-Outs

Fergie, Kelly Osbourne and more are talking up their favorite fitness tricks and must-do routines

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SUSAN SARANDON'S PONG

"I think ping pong is the most fun way to stay in shape," the actress – and SPiN New York table tennis club co-owner – says. "I mean you really work up a sweat and it's fun. It's good for your mind as well as your body. So unlike the treadmill that kills brain cells this actually invigorates you."