Beyonce's Grammy Performance 2010 2010-01-31 21:40:11

Beyonce's Head-Banging Alanis Cover at the Grammys

Beyonce sings a mashup of her own "If I Were a Boy" and Alanis Morissette's "You Oughta Know" in a high-energy Grammy performance! Make sure you watch through to the end to see Jay-Z looking like a very proud husband!

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