Def Leppard are a hard rock and heavy metal band from Sheffield, England, which formed in 1977 as part of the New Wave of British Heavy Metal movement. Since 1992, the band have consisted of Joe Elliott (vocals), Phil Collen (guitar), Vivian Campbell (guitar), Rick Savage (bass guitar), and Rick Allen (drums).
Their next studio album Adrenalize (the first following the death of guitarist Steve Clark) reached number one on the U.S. Billboard 200 and UK Album Chart in 1992, and contained several hits including, "Let's Get Rocked" and "Have You Ever Needed Someone So Bad". Their 1993 album Retro Active contained the acoustic hit song "Two Steps Behind", while their greatest hits album Vault released in 1995 featured the new track "When Love & Hate Collide".As one of the world's best-selling music artists, Def Leppard have sold over 65 million albums worldwide, and have two albums with RIAA diamond certification, Pyromania and Hysteria.They are one of only five rock bands with two original studio albums selling over 10 million copies in the U.S.The band were ranked 31 in VH1's "100 Greatest Artists of Hard Rock".Def Leppard continue to play concerts in stadiums, arenas and rock festivals around the world, and plan to tour again in 2011.