Leighton Meester
Credit: Splash News; Getty Images

Celebrities are changing their styles and hair colors in 2011, and they're taking their looks in bold new directions. Gossip Girl Leighton Meester added fringe to her 'do at the end of June. Click "See the Photos" to check out the biggest hair changes of 2011—before and after pics included! Tell us your favorite transformation in the comments!