Beyonce Shows You How to Shake It and Mickey Rourke Packs on the Pounds - January 23 to January 29

Celebrities might have fame and money, but they still have to eat right and work hard for those gorgeous bodies. Well, most of them do, anyway.

Want to see what your favorite fit celebrities have been up to? Click on their faces above to see how they've stayed in shape this week -- trust me, here at That's Fit, we work hard to keep you up to date on important scoop like this!