Posted on Wed May 25th, 2011 12:05pm PDT By X17 Staff
Jimmy kimmell aired a "new" performance of Britney Spears singing Big Fat Bass.
But it's not too hard to tell it was recorded a few months ago when Spears appeared on the late night show to promote her latest album Femme Fatale.
Her latest performance with Rihanna at the Billboard Music Awards last week in Las Vegas was a tad bit more titallating than this one.
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