Robert Fripp is an English musician, songwriter, and record producer, best known as the guitarist, founder and longest-lasting member of the progressive rock band King Crimson. He has worked extensively as a session musician and collaborator, notably with David Bowie, Blondie, Brian Eno, Peter Gabriel, Daryl Hall, Midge Ure, Talking Heads, and David Sylvian. He has also contributed sounds to the Windows Vista operating system. His discography includes contributions to over 700 official releases.