Cool thread btw.
Black Sabbath (especially "Iron Man." Funny story though. There was this bus driver who was obviously on dope and what impressed the kids was that she knew ALL the words to that song.
Evanescence (esp. "Wake me up"), Coldplay (esp. "Clocks"), The Cure (esp. "Burn")
Elvis (fondess for the classics), Tom Petty, Madonna, Nat King Cole, Tina Turner, David Bowie, Rufus Wainright, Sheryl Crow, Annie Lennox, Enya, Lorenna McKennitt, and Steppenwolf to name a few.