Jennifer Lopez

One more thing to appreciate about Jennifer Lopez (aside from the talent, the honesty and the infectious smile), is that she has said, "I could never be a size zero. I just don't see how I could get down to that size and still be healthy." She says she's been a size 6 for the past decade, and attributes her toned physique to working out with a trainer two to three times per week and not overeating. This multi-hyphenated talent is all about portion control -- those in her entourage swear that Lopez never overindulges.