10 Hot Actors Who Packed on the Muscle for Their Movie Roles

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Tumblr (teendotcom)

Tumblr (teendotcom)

Nick Jonas has more new music debuting in the coming days and, while we’re absolutely thrilled to hear his voice once again, we need to discuss another part about him: his manly physique. The 21-year-old has not only been exercising his vocal chords, but he’s been working on, well, EVERYTHING ELSE too for his upcoming TV series, Kingdom. He gained 15 pounds for it!

That got us to thinking about all of the other babes in Hollywood who bulked up for their roles. Here are 15 such actors who packed on the pounds (or lost, in some cases) to look even hunkier on the big screen: