Katy Perry talks "California Gurls"

Katy Perry - California Gurls (Official Music Video) ft. Snoop Dogg

Katy Perry - California Gurls (Official Music Video) ft. Snoop Dogg

Katy Perry - The CW Sizzle Reel

Katy Perry - The CW Sizzle Reel

Katy Perry - California Gurls ft. Snoop (Lyric Video)

Katy Perry - California Gurls ft. Snoop (Lyric Video)

Katy Perry - Waking Up In Vegas (Official)

Katy Perry - Thinking Of You (Official)

Katy Perry - YouTube Live

Katy Perry - YouTube Live

Katy Perry - Hot N Cold (Official Music Video)

Katy Perry - Hot N Cold (Official Music Video)

MTV Invites Katy to Host their Europe Music Awards...

MTV Invites Katy to Host their Europe Music Awards...

Cologne Show Highlights

Germany

Germany

Berlin to London to Paris to Marcielles Webisode

Berlin to London to Paris to Marcielles Webisode