Um, whoa. Britney gets naughty in her new music video, and we kind of love it. Between stripper boots, whips, bikinis, and sharks (yeah, we're not too sure about that last one), the pop icon is serving us Las Vegas realness, just in time for her upcoming two-year residency at Planet Hollywood. Oh, and how could we forget that her desert dancing scenes totally remind us of the Spice Girls' 1996 music video 'Say You'll Be There.' Work, Brit!