Sometimes they're simply bored; sometimes they're making a joke; and other times they're proudly displaying the (pectoral) fruits of some hard labor at the gym. See why actors are into posting shirtless pics on social media. — By Meriah Doty
Why Do Actors Post Shirtless Pics?
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Buff Bods Via Twitter
Captain America: Civil War
It's Cap vs. Iron Man in Action-Packed, Avenger-Riving 'Captain America: Civil War' Trailer