Katy Perry Teenage Dream Live on Letterman

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=NHnKQfHutrU

Music video by Katy Perry performing Teenage Dream (Live on Letterman). © CBS Interactive Music Group, a division of CBS Radio, Inc.

Katy, Perry, Teenage, Dream, (Live, on, Letter, man), CBS, Pop
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