Def Leppard are an English rock band formed in 1976 in Sheffield. Since 1992, the band has consisted of Rick Savage (bass, backing vocals), Joe Elliott (lead vocals), Rick Allen (drums), Phil Collen (guitar, backing vocals), and Vivian Campbell (guitar, backing vocals). They established themselves as part of the new wave of British heavy metal of the early 1980s. Their greatest commercial success came between the early 1980s and early 1990s.