Rihanna Shows Off Booty in New Video

Shake it, girl!

shows off her booty in tiny shorts in the funky music video for her new single, "Rude Boy," off her Rated R album.

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The singer, 21, also dances around in a bra top, poses on a Zebra and plays the drums during the '80s pop art-inspired clip.

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The video's colors pay homage to the Caribbean. Rihanna is a native of Barbados.

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