The first eight bands have already been confirmed for the inevitable Guitar Hero 5.

They are: Wolfmother, Rammstein, Beck, Garbage, Billy Squier, My Morning Jacket, Kaiser Chiefs and Brand New.

You can find some more early details here.
Source The first eight bands have already been confirmed for the inevitable Guitar Hero 5.

They are: Wolfmother, Rammstein, Beck, Garbage, Billy Squier, My Morning Jacket, Kaiser Chiefs and Brand New.

You can find some more early details here.
Source