Photos of Ashlee Simpson, Eminem, Jay-Z, Ryan Phillippe, DJ AM, Matthew McConaughey at DJ Hero Launch

by POPSUGAR Celebrity 11

Guitar Hero's highly anticipated spinoff game, DJ Hero, launched in LA last night, already boasting quite the celebrity following. Eminem looked a lot more comfortable rapping with Jay-Z yesterday than he did at the MTV Movie Awards, though the show's writer admitted that the stunt was all staged and rehearsed. DJ AM showed off his real-life turntable skills for the crowd, which included Matthew McConaughey, Camila Alves, Abbie Cornish, and Ryan Phillippe. Despite the news that Pete Wentz's NYC bar is temporarily shutting down for serving minors, he and Ashlee Simpson joined the bash. Kim Kardashian came to hear Eminem's shoutout to her live as they partied the night away months before the game's release this Fall.

Source and Splash News Online

To see lots more photos including a mustached Zachary Levi, Kate Mara, Adam Levine, and many others just read more.

Images include: Brittny Gastineau, Kelly Osbourne, Jay-Z, Ashlee Simpson, Eminem, DJ AM, Pete Wentz, Kim Kardashian, Travis Barker, Abbie Cornish, Aisha Tyler, Amber Valletta, Breckin Meyer, Mark Hoppus, Michelle Trachtenberg, Nicky Hilton, Ryan Phillippe, Adam Levine, Ali Larter, Amy Smart, Baron Davis, Cash Warren, Kate Mara, Simon Rex, Taraji P. Henson, Tyrese Gibson, Vanessa Minnillo, Jeremy Piven, Matthew McConaughey, Camila Alves, Jeremy Piven, Zachary Levi