I have a confession to make: I used to date a girl (and if this were bsmokedturkey.com, I'd provide full disclosure of her name, but our sites are fighting over copyright infringement) who would never listen to the band Rush because she said they were "bad luck." Ever since then, I don't think I've ever listened to an entire Rush song in it's entirety, although I have a sneaky suspicion that Marlon Lucky has.
Rolling Stone put together a list of the all-time guilty pleasure "rock" bands. The list is pretty accurate, although it seems the world has sadly forgotten about the late Karen Carpenter. Either that, or the Carpenters are now considered legit.