English musician, best known for being the bass guitarist in the original line-up of the punk rock band the Sex Pistols. He is credited as a songwriter on 10 of the 12 songs on the Sex Pistols' only officially released studio album, Never Mind the Bollocks, Here's the Sex Pistols, although he had left the band early in the recording process, credited as bassist and backing vocalist on only one song on the album, "Anarchy in the U.K.". However, on the bootleg album Spunk, Matlock played bass on all the songs, which included earlier studio recordings of 10 of the 12 songs that later appeared on the Bollocks album
