Weidenfeller Roman

Katy Perry - Waking Up In Vegas (Live on Letterman)

Katy Perry - I Kissed A Girl (Live on Letterman)

Justin Bieber - Fuse Interview

Katy Perry - Jocks

Katy Perry - Thinking Of You (Live on Letterman)

Katy Perry - Hot N Cold (Live on Letterman)

Rihanna - Battleship: Naval Training

Katy Perry - The Love of Everett McDonald's Life

Katy Perry - Roar: Queen of the Jungle (Music Video Preview)

Justin Bieber - 2010 Backstage Interview (American Music Awards)

Katy Perry - I go for Steve Johnson