i seriously cant find any i think the portrait in the shop is supposed to be madonna but she aint a band
I'm guessing the two Men In Black are meant to represent Will Smith. One even looks vaguely like Tommy Lee Jones.
I'm thinking: Seal (Poster on the wall nest to Dead Kennedys.) Eminem (Is that a bag of M&M's on the ground? I can't tell.) The Black Crowes (The birds on the Main St. sign.) But I'm not sure about any of those.