Celebrity Transformations Happy Birthday, Drew Barrymore! By InStyle Editors InStyle Editors Facebook Instagram Twitter Our editors and writers comprise decades of expertise across the beauty, fashion, lifestyle and wellness spaces in print and digital. We prioritize journalistic integrity, factual accuracy, and also having fun with every story we share. InStyle's editorial guidelines Published on February 22, 2012 @ 11:20AM Pin Share Tweet Email Photo: Mark Weiss/Angles/WireImage.com; Splash News Drew Barrymore turns 37 today! To celebrate, we're taking a look back at the bride-to-be's transformation, from child star to big-screen beauty. See Drew's most memorable looks in the gallery now. MORE:• See Drew’s Engagement Ring!• Drew's Wedding Dress Style• Celeb Pets: Drew's New Dog!