Photo by John Sciulli/Getty Images North America

Celebrities, athletes, and fans of “Call of Duty XP,”celebrated the two-day convention of Activision’s shoot-’em-up video game franchise, and joined hot gaming girl Marisa Miller as she co- hosted the world premiere of one of 2011’s most anticipated video games, Call of Duty: Modern Warfare 3, which releases November 8.

The First-Ever convention at the Stages at Playa Vista in LA with an exclusive live performance from Kanye West, brought out Terri Hatcher, Maria Shriver, Jack Osbourne, Amber Tamblyn and many more.