Joy Division were an English rock band formed in Salford in 1976. The group consisted of vocalist, guitarist and lyricist Ian Curtis, guitarist and keyboardist Bernard Sumner, bassist Peter Hook and drummer Stephen Morris. Sumner and Hook formed the band after attending a June 1976 Sex Pistols concert. While Joy Division's first recordings were heavily influenced by early punk music, they soon developed a dark, sparse style that made them a pioneering group of the post-punk genre. Their self-released 1978 debut EP An Ideal for Living drew the attention of the Manchester television personality Tony Wilson, who signed them to his independent label Factory Records. Their debut album Unknown Pleasures, recorded with producer Martin Hannett, was released in 1979.