Happy Birthday, Brad Pitt! See His Sexiest Looks (PHOTOS & VIDEO)
And in that time, he's gone from just another pretty face (you're still thinking of those abs, right?) to serious thespian. In fact, his acting efforts have earned him three Oscar nominations: for 12 Monkeys, The Curious Case of Benjamin Button and Moneyball.
He's also changed his look for many of those roles -- and rocked more than a few red carpets with a variety of styles. Whether he was slimming down or buffing up, rocking pretty-boy coiffes or sporting long locks, or looking clean-shaven or super-scraggly, we were always left weak in the knees by Mr. Pitt.
So to celebrate his big 4-9, we're looking back at his sexiest, most show-stopping looks. Click through our gallery to see them -- then let us know in the comments section which is your absolute favorite.











