Camilla Belle & Katy Perry: Coachella Kick-Off

Camilla Belle and a slew of other celebrities attend the opening day of the 2010 Coachella Valley Music and Arts Festival on Friday (April 16) in Indio, Calif.

Other celebs spotted with their friends: Katy Perry, Pink, Scott Speedman, Chris Klein, and John Mayer.

Some of the big acts of the day included Imogen Heap, Jay-Z, Vampire Weekend and Passion Pit.

20+ pictures inside of Camilla Belle kicking off Coachella…