Watch Katy Perry Perform 'Firework'

Name: Watch Katy Perry Perform 'Firework'
Uploaded: 2010-12-09T02:35:11+00:00
Description: The multiple Grammy-nominated Katy Perry stopped by to perform her hit song, "Firework."

Collected by twitter on Dec 9, 2010

The multiple Grammy-nominated Katy Perry stopped by to perform her hit song, "Firework."

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