ENTERTAINMENT
09/28/2008 05:12 am ET | Updated May 25, 2011

John Legend, will.i.am "Yes We Can" Performance At Democratic Convention (VIDEO)

Will.i.am and John Legend performed "Yes We Can," the viral video created by will.i.am that was a smash hit online. Watch the performance below.

Plus, watch the amazing Jennifer Hudson sing the national anthem

Watch "Yes We Can":

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