Aside from Led Zeppelin, Van Halen is probably the most obvious and oft-suggested band to focus a music game around. The big difference between the two, apparently, is that a Van Halen game might actually be happening. Kotaku has reported that the Unterhaltungssoftware Selbstkontrolle--the German rating board whose title, according to Babelfish, translates to “maintenance software self-check”--has published its rating for a game titled Guitar Hero headlining Van Halen for the Xbox 360 and PlayStation 3. Activision hasn't yet commented on this development, and at this point in the year I can't imagine they're going to say anything until around E3 time, but I won't let that stop me from wondering aloud about Guitar Hero headlining Van Halen.
There are few bands in the world that have undergone as visible a personnel change as Van Halen when, arguably at the height of its considerable popularity, David Lee Roth left and was subsequently replaced by Sammy Hagar. Now I'm not much of a Van Hagar fan, but the Red Rocker was with the band for a long time, it would seem ridiculous to make a game that revolves around Van Halen and doesn't feature both singers. Guitar Hero: Metallica all but ignored the fact that Metallica had two different long-term bass players, so there's precedent, but that's a harder trick to pull with the lead singer. I can't imagine fans would be too pleased to see David Lee Roth's voice coming out of a polygonal Spitting Image version Sammy Hagar, or vice versa.