Rory gallagher, one of the most genuine musicians of his generation. Such a down to earth guy.

Magnetic Fields are mean, I know that from experience. Still love their music though :/

Dave Grohl is supposed to be one of the nicest guys in rock music. Someone said Billy Corgan, I think he's one of those guys who means well, has good intentions, and is usually nice, but just suffers from the old foot in mouth problem. I feel his dickery is either not intentional, or jokes that don't go over well.

As far as a person I think who would be an all-around arsehole… Axl Rose for sure. And as much as it pains me to say because I really like him, Scott Weiland is probably an extraordinary douche.

And I think Thom Yorke is just incapable of being happy.

Christina Aguilera is extremely rude. Liam and Noel Gallagher are pretty mean too, I wouldn't want to cross them on the street.