Home Features 30 Years Ago: Def Leppard Unleash ‘Hysteria’ 30 Years Ago: Def Leppard Unleash ‘Hysteria’ planetsixstring August 3, 2017 comments off Tweet on Twitter Share on Facebook Google+ Pinterest On Aug. 3, 1987, Def Leppard followed the hugely popular ‘Pyromania’ with the biggest album of their career, ‘Hysteria.’ Continue reading…