Phil Collen Looks Back on Def Leppard’s ‘Hysteria': Exclusive Video PremierePhil Collen Looks Back on Def Leppard’s ‘Hysteria': Exclusive Video PremiereDef Leppard guitarist Phil Collen takes fans on a trip back in time to the genesis of some of the biggest hits from the group's 'Hysteria' album in a new video interview.Jeff GilesJeff Giles