Get "Dark Horse" feat. Juicy J from Katy Perry's PRISM: http://smarturl.it/PRISM
Do you want to play with magic? Insert yourself into the video using #DarkHorseCam: http://andCam.com/DarkHorse
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
http://instagram.com/katyperry