Gossip Girl (@gossipgirl) tweeted at 3:20 AM on Mon, Apr 29, 2013: It's Zac Efron Vs. Channing Tatum! Which 1 will take home the coveted title of Ultimate Shirtless Guy? Vote now: http://t.co/Eg0qHEq4w7 (https://twitter.com/gossipgirl/status/328627268962365440) Get the official Twitter app at https://twitter.com/download