It's Channing Tatum Shirtless!

Image from GQ magazine.

The mystery man was Mr. Channing Tatum! You may have seen him in the movies "G.I Joe," "Step Up," and "She's the Man." He can't really act, but he knows how to work that hot body. He played a dancer in "Step Up" and he was a backup dancer in Ricky Martin's "She Bangs" video.