So far, it seems like the main reason for buying Guitar Hero 5 is that it has a shitload of famous musician avatars (like Johnny Cash and Shirley Manson of Garbage). The biggest one to be announced is Kurt Cobain, who as you can see in the video above, is a playable character during "Smells Like Teen Spirit" and "Lithium." It makes me think of this. Guitar Hero 5 is due out on Sept. 1.  [Stereogum]