Def Leppard rocked the stage during their first ... they quickly noticed that one bandmate was missing: longtime guitarist Viv Campbell. During the show, frontman Joe Elliott told the crowd ...

Def Leppard drummer Rick Allen’s Raven Drum Foundation will host its second annual benefit concert in April; the event also will featuring KISS’ Peter Criss and more stars.

A fairly big get for the Great Minnesota Get-Together, Def Leppard remains one of rock ... including singer Joe Elliott, guitarist Phil Collen, bassist Rick Savage and drummer Rick Allen.