10. Chace Crawford
TV playboy Chace Crawford beat out his good-looking Gossip Girl costars to hold down the number-10 spot among Hollywood's sexiest heartthrobs. The Texas native's rockin bod and cool, casual style turned heads at this year's Met Ball and he was undoubtedly the most sought-after groomsman at his sister Candice's wedding to Dallas quarterback Tony Romo. Next up, he'll share the screen with Katie Holmes when the pair hook up in the romantic comedy Responsible Adults.