Beauty Makeup Britney Spears Turns 30 Today: See Her Transformation! By Sharon Clott Kanter Sharon Clott Kanter Sharon Clott Kanter is a New York-based writer, editor, and producer who covers fashion, beauty, and pop culture. She was previously the Senior Editor for InStyle and currently teaches fashion journalism at Syracuse University. InStyle's editorial guidelines Published on December 2, 2011 @ 10:15AM Pin Share Tweet Email Photo: Getty Images; Retna Happy birthday, Britney Spears! The pop star hits her milestone 30th today, something her global fanbase is sure to appreciate. (She counts 15 million fans on Facebook and another 11.5 million on Twitter!) Take a moment to celebrate her big day by clicking through her transformation—see her rise from her "...Baby One More Time" teen years to full Femme Fatale now. Tell us: Do you have a favorite Britney song? MORE:• See Britney's VMA Outfits• 'I Wanna Go' Video Looks!• Britney's Femme Fatale Tour Outfits• Watch Her 'Til the World Ends' Video