Scorching hot! Check out shirtless pics of Hollywood's sexiest leading men, including Chris Pratt, Josh Duhamel, Matt Bomer, Channing Tatum, and more. Plus, get their tips on fitness, diet, and more.
To prepare for 2012's Total Recall, the actor used the TV reality show The Biggest Loser as inspiration to get into shape. "When people that size can lose weight and get healthy again, it is possible for anyone," he told FOX411's Pop Tarts. "I ate lots of greens and chicken, I didn't order dessert for four months."