By InStyle Staff
Apr 15, 2012 @ 11:00 am
Jamie McCarthy/WireImage; XposurePhotos

Today is Emma Watson's 22nd birthday! Take a look back at the Harry Potter star's Hollywood transformation, from long-haired Hermione Granger to a pixie-cropped Ivy Leaguer and beyond, by clicking through the gallery now. 

MORE:Emma's Latest Lancome CampaignEmma's Harry Potter Premiere StyleAll the Harry Potter Stars, Then and Now