Katy Perry - Dark Horse (Official) ft. Juicy J - YouTube

https://www.youtube.com/watch?v=0KSOMA3QBU0

Get "Dark Horse" from Katy Perry's 'PRISM': http://katy.to/PRISM Katy Perry Complete Collection on Spotify: http://katy.to/SpotifyCompleteYD Katy Perry Essen...