Three of a Perfect Pair is the tenth studio album by the band King Crimson, released in 1984. The album is a balance between the experimental Discipline, and the more commercially accessible Beat. Tony Levin had more input than on any other King Crimson album. It is divided into a "left" and "right" side, with a third side added in 2001. One of the bonus tracks is a barbershop a cappella in which all four members supposedly sing but is really Levin's voice overdubbed to create harmonization. Following the literary theme of the preceding two albums, the album title may be a subtle nod to the novel Nineteen Eighty-Four, as the album was released in the actual year 1984. The name is based on the idea of perfect opposites and "three sides to every story," or His, Hers and an objective truth. The Peter Willis designed artwork illustrates the sacred–profane dichotomy while being a simplified version of the Larks' Tongues in Aspic cover; a rising phallic object represents a male solar deity about to penetrate the crescent figure, a female lunar deity. However, one can also make out a Christian cross if staring at the empty spaces between the figures. The back cover illustration is the same but adds a third element, a curved line stretching to reconcile the opposing sides.
Tracks 10-15 were added for the 2001 remaster. Two of the three "Sleepless" mixes were previously available on the UK 12" single. The Bob Clearmountain mix appeared (incorrectly credited and against the band's wishes) on the U.S. Warner Bros. LP pressing.