Celebrity Transformations Happy 31st Birthday, Britney Spears! See her Transformation By Jennifer Davis Published on December 2, 2012 Pin Share Tweet Email Photo: Getty Images; Retna Ltd. Happy birthday, Britney Spears! The X Factor judge turns 31 today, and she’s still churning out the hits (check out her most recent video "Scream and Shout" with will.i.am). In honor of her birthday, click through the gallery to see her evolution from pop princess (the schoolgirl look is iconic!) to one of the highest-paid musicians in the business. MORE:• Highest Paid Musicians• Britney's New Pooch, Hannah• Britney Spears’ X Factor Outfits Was this page helpful? Thanks for your feedback! Tell us why! Other Submit