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LMFAO performs their monster hit at the American Music Awards 2011. Look out for a cameo by Justin Bieber!

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LMFAO!!!!!!!!!!!!

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this song and video has got all of my spirit. how did you know this was me? you are the greatest .

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hiiiiiiiiiiiiiiiiizzzzzz

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LMFAO!!!

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JUSTIN WAS HILARIOUS WHATS UP WITH TGE SMILEY FACES LOL

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