Britney Spears turns 32 today! The singer has brought plenty of hotness since hitting the scene in 1999, including endless amounts of ab-baring ensembles and multiple envelope-pushing dance moves. Britney's role as an X Factor US judge and mentor had her hitting the stage in a different way, and with her new album Britney Jean recently dropping, her star presence and sex appeal are as hot as ever. We're celebrating Britney's big day with a look back at her steamiest stage moments, from sexy schoolgirl to circus ringleader to full-blown femme fatale. Click through to see them all now!
You Better Work: Britney's Sexiest Stage Moments