Hottest Bachelors 2009

The Dirty Dozen: Hollywood's Naughtiest Bachelors

John! Leo! Brody! See how these notorious playboys make being bad look so good

JOSH HARTNETT

The actor has enjoyed his pick of famous women – including on-and-off girlfriend Helena Christensen. And in March, the actor was spotted locking lips with former flame Kirsten Dunst. The next month, though, he was hitting the clubs (solo!) – just a week after being hospitalized with a stomach ailment. Now that's a devoted bachelor!