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Stars' Workout Shout-Outs

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

ZOE'S TOUGH LOVE

"I like hearing, 'I'm disappointed in you' from my trainer because it only makes me hungrier," says Saldana, who credits her lean shape to onset stunt choreographer Garret Warren, whom she's worked with for four years. "He basically [knows] my body and how far to take me."