Discipline is the eighth studio album by English progressive rock band King Crimson, released on 22 September 1981 by E.G. Records in the United Kingdom and by Warner Bros. Records in the United States. This album was King Crimson's first album following a seven-year hiatus. Only band co-founder and guitarist Robert Fripp and drummer Bill Bruford remained from the previous incarnation. They were joined by two American musicians: guitarist, vocalist and lyricist Adrian Belew and bassist and backing vocalist Tony Levin. The album featured a more streamlined, new wave influenced sound. Discipline has been described as art rock, progressive rock, Read more on Last.fm.