Happy Birthday, Emma Watson! The Noah actress, who turns 24 today, is best known for her role as Hermione Granger in the Harry Potter franchise. But when the star isn't starring in hit films or prepping for her graduation from Brown University, she walks red carpets in flawless style--whether that means donning an off-the-shoulder dress or opting for cigarette pants to complement a cocktail dress. Watson has come a long way since the fresh-faced tween we first met back in 2001. From her girlish curls to her ultra-chic pixie, take a look back at Emma Watson's beauty evolution.