Karlheinz Stockhausen

December 5, 2007: Karlheinz Stockhausen, 79, German avant-garde composer who influenced modern classical music, techno music and rock stars including John Lennon, Frank Zappa and David Bowie. Stockhausen was at the centre of controversy when he claimed the attacks of September 11, 2001 were "the greatest work of art one can imagine". He later apologised.
Links: CNN