One of the most famous conceptual art piece in the world is perhaps Duchamps readymade sculpture in porcelain named “Fountain” from 1917. The picture of the piece is widely spread over the world and did of course create a havoc at the time. And it still does, when people still exclaim “that can’t be art!”. The band Neurobash has made a homage to the old art piece, perhaps unconsciously. See for yourself and judge from the result.
(original piece, from 1917 - missing. Photo by Alfred Stieglitz)
(Duchamps own replica, from 1964)