Hottest Bodies 2014

Amazing Celebrity Slim-downs

See how these stars – Janet Jackson! Alec Baldwin! Mariah Carey! – shed the pounds for their biggest body transformations

JORDIN SPARKS

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When she won American Idol five years ago, Sparks was a size 14. Thirty pounds later, the 22-year-old is now happily a size 8. "My body craves the gym," says the singer, who dropped the weight off her 5'11" frame with a combination of cardio, Zumba and diet. "I watch what I eat a little more strictly."