The YouTube Interview with Katy Perry - YouTube
Katy Perry - Daisies - YouTube
Katy Perry - Rise (Official) - YouTube
Alesso, Katy Perry - When I'm Gone (Official Music Video) - YouTube
Katy Perry - YouTube
Katy Perry - This Is How We Do (Official) - YouTube
Katy Perry - Chained To The Rhythm (Official) ft. Skip Marley - YouTube
Katy Perry - Wide Awake (Official Video) - YouTube
Katy Perry - Teenage Dream (Official Music Video) - YouTube
Katy Perry - Unconditionally (Official) - YouTube
Katy Perry | Katy Perry YouTube Live, November 22, 2008 Fort… | Flickr
Katy Perry - Dark Horse ft. Juicy J - YouTube
Katy Perry - Not the End of the World (Official Music Video) - YouTube
Alesso, Katy Perry - When I'm Gone (Official Music Video) - YouTube
Katy Perry and Ellen DeGeneres Are Getting Their Own YouTube Shows | Glamour
Extended interview: Katy Perry opens up about motherhood, life before fame and what's next - YouTube
Katy Perry Israel - YouTube
Katy Perry - YouTube
Katy Perry Best.Cover.Ever. - Episode 2 - YouTube
Katy Perry - Wide Awake (Official Video) - YouTube
Katy Perry Vibes - YouTube
Katy Perry - Roar - YouTube
Katy Perry - The One That Got Away - YouTube
Katy Perry Thailand - YouTube
Katy Perry Extends Record As Act With Most Youtube Videos With Over 500M Views - That Grape Juice
Katy Perry conquista un primato mondiale su Youtube | Radio Bruno
Katy Perry - Last Friday Night (T.G.I.F.) (Official Music Video) - YouTube
