Half Their Size: Celeb Edition!

These stars embraced slimmer silhouettes for new roles, onscreen and off

1 of 9

KIRSTIE ALLEY

Gone is the body-hiding "Amish" look, as Kirstie Alley called it, that she wore at 219 lbs (left, in 2004). Today, at 164, Alley is declaring, as she recently did on Oprah, "I think I look so hot!" How she did it: limiting herself to up to 1,500 daily calories of Jenny Craig food, plus fresh fruit and vegetables, and enlisting choreographers Rich & Fly to create cardio routines.