Robert Fripp (born 16 May 1946) is an English guitarist, composer and record producer.
As a guitarist for the progressive rock band King Crimson, Fripp has been the only member to have played in all of King Crimson's line-ups from the late 1960s to the early 2000s.
http://en.wikipedia.org/wiki/Robert_Fripp
http://en.wikipedia.org/wiki/King_Crimson