art for art's sake
other people who enjoy sticking their hand up inside a hole so far that it reaches a mouth. but not if you're some kind of pervert.
Los Lobos, The Meters, boards of Canada, Devo, Inbred Bipeds, Rhoades D'Ablo and the Devil's Right Hand, Eagles of Death Metal, Brant Bjork and the Bros, Kyuss, Masters of Reality, Queens of the Stone Age...