Katy Perry - PRISMATIC World Tour

See Katy Perry on the PRISMATIC WORLD TOUR, for dates: http://www.katyperry.com/events Featuring "Birthday" from Katy Perry s PRISM : http://smarturl.it/PRISM Follow Katy Perry: http://www.katyperry.com http://youtube.com/katyperry http://twitter.com/katyperry http://facebook.com/katyperry http://instagram.com/katyperry