Katy Perry -- Birthday (Official)
Get "Birthday" from Katy Perry's 'PRISM': http://smarturl.it/PRISM
Official video for Katy Perry's "Birthday" directed by Marc Klasfeld and Danny Lockwood, produced by Dawn Rose.
THE PRISMATIC WORLD TOUR coming to you soon:
http://www.katyperry.com/events
Follow Katy Perry:
http://www.katyperry.com
http://youtube.com/katyperry
http://twitter.com/katyperry
http://facebook.com/katyperry
