Joe Elliott, left, and Phil Collen perform with the band Def Leppard in this photo taken in 2012 in Los Angeles.
Joe Elliott, left, and Phil Collen perform with the band Def Leppard in this photo taken in 2012 in Los Angeles. Matt Sayles Matt Sayles/Invision/AP
Joe Elliott, left, and Phil Collen perform with the band Def Leppard in this photo taken in 2012 in Los Angeles. Matt Sayles Matt Sayles/Invision/AP