Music

Video: Screechy Divas - Rihanna, Britney, Christina Singing Horribly Off-Key

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show http://www.youtube.com/watch?v=Q31YDyxbS5k&feature=player_embedded

Rihanna. Madonna. Gaga. Mariah. Britney. Christina. They're all recognized giants of the pop music world -- but sometimes they ain't so great live. Case in point: this compilation of their less-than-perfect concert moments. Listen for as long as you can stand it.