Hottest Bodies 2014

12 Hottest Bodies of 2012

From Elle Macpherson's bikini comeback to William Levy's ballroom abs, see the stars who had us talking and gawking!

ZAC EFRON

When Efron signed up to play a marine in The Lucky One, the former Disney heartthrob put on more than 18 lbs. of muscle with a protein-packed diet and exercise regime. "By the end of the movie I didn't recognize myself," Efron, 24, told Men's Health. "You hear about guys like Christian Bale who dive into it and are really able to transform. I've always wondered if I had the willpower to actually do it. And I'll always have pride around the sense that I can."