"Guitar Hero: Warriors of Rock" Launch - Inside

HOLLYWOOD - SEPTEMBER 27: Actors Harry Shum Jr. and Mark Salling attend the "Guitar Hero: Warriors Of Rock" launch at Paramount Studios on September 27, 2010 in Hollywood, California. (Photo by Michael Buckner/Getty Images for Activision)

"Guitar Hero: Warriors of Rock" Launch - Inside

HOLLYWOOD - SEPTEMBER 27: Musicians Kim Thayil, Chris Cornell, Matt Cameron and Ben Shepherd of Soundgarden attend the "Guitar Hero: Warriors Of Rock" launch at Paramount Studios on September 27, 2010 in Hollywood, California. (Photo by Michael Buckner/Getty Images for Activision)

"Guitar Hero: Warriors of Rock" Launch - Inside

HOLLYWOOD - SEPTEMBER 27: Musicians Kim Thayil, Chris Cornell, Matt Cameron and Ben Shepherd of Soundgarden attend the "Guitar Hero: Warriors Of Rock" launch at Paramount Studios on September 27, 2010 in Hollywood, California. (Photo by Michael Buckner/Getty Images for Activision)

"Guitar Hero: Warriors of Rock" Launch - Inside

HOLLYWOOD - SEPTEMBER 27: Actor Cory Monteith attends the "Guitar Hero: Warriors Of Rock" launch at Paramount Studios on September 27, 2010 in Hollywood, California. (Photo by Michael Buckner/Getty Images for Activision)

"Guitar Hero: Warriors of Rock" Launch - Inside

HOLLYWOOD - SEPTEMBER 27: Musicians Kim Thayil, Chris Cornell, Matt Cameron and Ben Shepherd of Soundgarden attend the "Guitar Hero: Warriors Of Rock" launch at Paramount Studios on September 27, 2010 in Hollywood, California. (Photo by Michael Buckner/Getty Images for Activision)

"Guitar Hero: Warriors of Rock" Launch - Inside

HOLLYWOOD - SEPTEMBER 27: Musicians Kim Thayil, Chris Cornell, Matt Cameron and Ben Shepherd of Soundgarden attend the "Guitar Hero: Warriors Of Rock" launch at Paramount Studios on September 27, 2010 in Hollywood, California. (Photo by Michael Buckner/Getty Images for Activision)

"Guitar Hero: Warriors of Rock" Launch - Inside

HOLLYWOOD - SEPTEMBER 27: Actor Cory Monteith attends the "Guitar Hero: Warriors Of Rock" launch at Paramount Studios on September 27, 2010 in Hollywood, California. (Photo by Michael Buckner/Getty Images for Activision)

"Guitar Hero: Warriors of Rock" Launch - Inside

HOLLYWOOD - SEPTEMBER 27: (L-R) Actors Harry Shum Jr., Rick Malambri and Mark Salling attend the "Guitar Hero: Warriors Of Rock" launch at Paramount Studios on September 27, 2010 in Hollywood, California. (Photo by Michael Buckner/Getty Images for Activision)

"Guitar Hero: Warriors of Rock" Launch - Inside

HOLLYWOOD - SEPTEMBER 27: (L-R) Actors Harry Shum Jr., Rick Malambri and Mark Salling attend the "Guitar Hero: Warriors Of Rock" launch at Paramount Studios on September 27, 2010 in Hollywood, California. (Photo by Michael Buckner/Getty Images for Activision)

"Guitar Hero: Warriors of Rock" Launch - Inside

HOLLYWOOD - SEPTEMBER 27: Actors Harry Shum Jr. and Mark Salling attend the "Guitar Hero: Warriors Of Rock" launch at Paramount Studios on September 27, 2010 in Hollywood, California. (Photo by Michael Buckner/Getty Images for Activision)

"Guitar Hero: Warriors of Rock" Launch - Inside

HOLLYWOOD - SEPTEMBER 27: Actors Harry Shum Jr. and Mark Salling attend the "Guitar Hero: Warriors Of Rock" launch at Paramount Studios on September 27, 2010 in Hollywood, California. (Photo by Michael Buckner/Getty Images for Activision)

"Guitar Hero: Warriors of Rock" Launch - Inside

HOLLYWOOD - SEPTEMBER 27: Actors Harry Shum Jr. and Mark Salling attend the "Guitar Hero: Warriors Of Rock" launch at Paramount Studios on September 27, 2010 in Hollywood, California. (Photo by Michael Buckner/Getty Images for Activision)

"Guitar Hero: Warriors of Rock" Launch - Inside

HOLLYWOOD - SEPTEMBER 27: Actor Rick Malambri attends the "Guitar Hero: Warriors Of Rock" launch at Paramount Studios on September 27, 2010 in Hollywood, California. (Photo by Michael Buckner/Getty Images for Activision)

"Guitar Hero: Warriors of Rock" Launch - Inside

HOLLYWOOD - SEPTEMBER 27: Actor Mark Salling and musician Ryan Cabrera attend the "Guitar Hero: Warriors Of Rock" launch at Paramount Studios on September 27, 2010 in Hollywood, California. (Photo by Jason Merritt/Getty Images for Activision)

"Guitar Hero: Warriors of Rock" Launch - Inside

HOLLYWOOD - SEPTEMBER 27: A general view of atmosphere at the "Guitar Hero: Warriors Of Rock" launch at Paramount Studios on September 27, 2010 in Hollywood, California. (Photo by Michael Buckner/Getty Images for Activision)

"Guitar Hero: Warriors of Rock" Launch - Inside

HOLLYWOOD - SEPTEMBER 27: A general view of atmosphere at the "Guitar Hero: Warriors Of Rock" launch at Paramount Studios on September 27, 2010 in Hollywood, California. (Photo by Michael Buckner/Getty Images for Activision)

"Guitar Hero: Warriors of Rock" Launch - Inside

HOLLYWOOD - SEPTEMBER 27: A general view of atmosphere at the "Guitar Hero: Warriors Of Rock" launch at Paramount Studios on September 27, 2010 in Hollywood, California. (Photo by Jason Merritt/Getty Images for Activision)

"Guitar Hero: Warriors of Rock" Launch - Inside

HOLLYWOOD - SEPTEMBER 27: A general view of atmosphere at the "Guitar Hero: Warriors Of Rock" launch at Paramount Studios on September 27, 2010 in Hollywood, California. (Photo by Jason Merritt/Getty Images for Activision)

"Guitar Hero: Warriors of Rock" Launch - Inside

HOLLYWOOD - SEPTEMBER 27: A general view at the "Guitar Hero: Warriors Of Rock" launch at Paramount Studios on September 27, 2010 in Hollywood, California. (Photo by Michael Buckner/Getty Images for Activision)

"Guitar Hero: Warriors of Rock" Launch - Inside

HOLLYWOOD - SEPTEMBER 27: A general view of atmosphere at the "Guitar Hero: Warriors Of Rock" launch at Paramount Studios on September 27, 2010 in Hollywood, California. (Photo by Jason Merritt/Getty Images for Activision)

"Guitar Hero: Warriors of Rock" Launch - Inside

HOLLYWOOD - SEPTEMBER 27: Actor Mark Salling attends the "Guitar Hero: Warriors Of Rock" launch at Paramount Studios on September 27, 2010 in Hollywood, California. (Photo by Michael Buckner/Getty Images for Activision)

"Guitar Hero: Warriors of Rock" Launch - Inside

HOLLYWOOD - SEPTEMBER 27: Actor Mark Salling attends the "Guitar Hero: Warriors Of Rock" launch at Paramount Studios on September 27, 2010 in Hollywood, California. (Photo by Michael Buckner/Getty Images for Activision)

"Guitar Hero: Warriors of Rock" Launch - Inside

HOLLYWOOD - SEPTEMBER 27: A general view of atmosphere at the "Guitar Hero: Warriors Of Rock" launch at Paramount Studios on September 27, 2010 in Hollywood, California. (Photo by Michael Buckner/Getty Images for Activision)

"Guitar Hero: Warriors of Rock" Launch - Inside

HOLLYWOOD - SEPTEMBER 27: A general view of atmosphere at the "Guitar Hero: Warriors Of Rock" launch at Paramount Studios on September 27, 2010 in Hollywood, California. (Photo by Jason Merritt/Getty Images for Activision)

"Guitar Hero: Warriors of Rock" Launch - Inside

HOLLYWOOD - SEPTEMBER 27: Actor Harry Shum Jr. actor Mark Salling and musician Ryan Cabrera attend the "Guitar Hero: Warriors Of Rock" launch at Paramount Studios on September 27, 2010 in Hollywood, California. (Photo by Jason Merritt/Getty Images for Activision)