Arthur Brown was the fourth member of the 3 Tenors. Sort of. The Crazy World of Arthur Brown was a late-60s band, Himself with a psychedelic, rock-operatic power trio (organ, no guitar) that backed the flights of Brown's amazing voice - whose rough edges, extremes, and volatility made Robert Plant and Janis Joplin sound like Bing Crosby. Their debut LP (with worldwide hit "Fire" and a version of Screamin' Jay Hawkins' "I Put a Spell on You") was produced, in part, by Pete Townshend; Brown later did the film version of Tommy. Drummer Carl Palmer would later join ELP.