April 12, 2014 - Christopher Polk/Getty Images North America more pics like this »
1. Great Abs: Zac Efron

It's no surprise that buff hunk Zac Efron made the list, especially after this appearance at the 2014 MTV Movie Awards. Yum.

Chris and Heidi's favorite exercise for building bricks for abs: weighted crunches.

Click here for a video tutorial!