And speaking of 27th birthdays, Britney Spears is releasing her new album on hers! Circus, Britney's sixth studio album, will drop December 2. But the world will get a taste of Brit's new sound next Monday when the first single, "Womanizer," hits radio airwaves. We're psyched -- are you?

P.S. -- Is "circus" the perfect title to describe Britney's life lately or what!?