There are at least five artists with this name: (1) John Towner Williams (film score composer)
(2) John Christopher Williams (classical guitarist)
(3) John Williams (Irish musician)
(4) John Williams (blues/jazz guitarist)
(5) John Knowles Williams (experimental/indie)
--------------------------------------------- (1) John Towner Williams (born February 8, 1932) is one of the most widely recognized composers of film scores. As of 2006, he has received forty-seven music-related Academy Award nominations, an accomplishment surpassed only by Walt Disney.

Read more about John Williams on Last.fm.