While we often see brunettes going blonde, then hitting it big—Meester proves that brown hair can have just as much star power. She dyed her naturally-blonde hair a chestnut brown in the early stages of her career and we're so relieved she did. (There's no way she would have landed her breakout role as Blair Waldorf opposite one blonde Serena Van der Woodsen if she didn't.) - MarieClaire.com
"Right now, it's very popular for brunettes to put some sun-kissed highlights in their hair, especially from mid-length to ends, to give a more natural, organic feel," says Balding. Case in point: the caramel highlights through Leighton's warm brown.