behind the scenes: katy’s kettle corn
behind the scenes: popchips & katy perry
Behind The Scenes: Interview Magazine photoshoot
Extended Behind The Scenes of The Sims 3 Showtime with Katy Perry
More behind the scenes pics of the GHD mermaid photo shoot
Katy Perry’s The Sims 3 Commercial Behind The Scenes
If you go to 0:23 you can clearly see Katy singing the lyrics of Part Of Me!