It's commonplace to call every post-Blackout Britney Spears release a "comeback," but the music video for The Holy Spearit's new single, "Work Bitch," is the real deal. She dances, she whips, she dances, she stands in a pool of sharks, and she dances. Did we mention that she dances? The 31-year-old hasn't looked this alive and in the zone since, well, In The Zone.

Also, shout out to Britney's seriously bangin' bod. It's so toned and taut that we're having "Slave 4 u" flashbacks.