Activision is really doing their best to make us care about Guitar Hero III. Within the context of Wii Fanboy, they're beating out Rock Band at the moment strictly on the fact that Guitar Hero III is actually, for real, coming out on the Wii. But stuff like this, that is actually interesting content in the game, doesn't hurt.
First they had Living Colour rerecord the awesome "Cult of Personality", and now the Sex Pistols have reunited (again) to record "Anarchy in the U.K." for the game. In both cases, this was done because the master recordings for the songs could not be found. Activision certainly seems to be wielding more clout than we realized they had. The Sex Pistols recently rerecorded "Pretty Vacant" for EA's skate, proving beyond a shadow of a doubt that they will do things they've done before, again, for more money, twice. And why not?
"Anarchy in the U.K." should be the easiest song in the game, because it doesn't matter if you hit the right notes or keep any kind of rhythm.