Activision is responding to queries regarding the usage of Kurt Cobain’s likeness in Guitar Hero 5 with the following statement “Guitar Hero secured the necessary licensing rights from the Cobain estate in a written agreement signed by Courtney Love to use Kurt Cobain’s likeness as a fully playable character in Guitar Hero ® 5.”
Krist Novoselic and Dave Grohl, the two surviving members of Nirvana, have no say whatsoever in the usage of Kurt Cobain’s likeness.