What names go with the faces of the Terrible Canadian Music Hydra?

Per this webcomicwhat are the name of the faces of the Terrible Canadian Music Hydra?

Starting from the top and going counter-clockwise, I see Alanis Morisette, the guy from Nickelback, and Celine Dion.

Avril Lavigne under Celine Dion, I think.

How can they have this without Rush? I’d figure Geddy’s nose, at least, would be de rigeur.

The guy in the hat bears a remarkable resemblance to Chris Murphy from Sloan, but I could be mistaken. One of the ones in the lower right is the lead singer for Sum 41, I think.