Adrenalize is the fifth studio album by English rock band Def Leppard, released on 31 March 1992 through Mercury Records. It is the first album by the band recorded without guitarist Steve Clark, who died in 1991, although most songs were written and partially demoed before his death, they were re-recorded solo by Phil Collen in 1991-1992. It is the only album recorded by Def Leppard as a four-member band.
