Def Leppard are an English rock band formed in 1977 in Sheffield. Since 1992, the band has consisted of Joe Elliott (lead vocals), Rick Savage (bass, backing vocals), Rick Allen (drums, backing vocals), Phil Collen (guitars, backing vocals), and Vivian Campbell (guitars, backing vocals). They established themselves as part of the new wave of British heavy metal movement of the early 1980s. The band's greatest commercial success came between the early 1980s and the early 1990s. Their first album, 1980's On Through the Night, reached the Top 15 in the UK but received little notice elsewhere.