a few good ideas

[Darc665]

The songs on guitar her were songs that made you think about great guitarists, Rock Band, however, needs to make people to think of the band as a whole. The kind of band where you can name all the members.

A song by The Gorillaz
Definatly use The Beatles
The Immigrant Song- Led Zepplin
My Generation - The Who
Paint It Black - Rolling Stones

ill add more

[Rainer7]

As much as I love Gorillaz, their songs are a little too loopy IMO.

[Hunter Glass]

Take Out The Gorillaz And The Beatles And You Got Yourself A Good Setlist

[Pwnz0r3d]

Depends which Gorillaz,
thier songs are great, but could end up horribly boring for RB