Def Leppard will celebrate the 33rd anniversary of its mega-selling album “Hysteria” with a week of special events. Kicking things off will be a listening party and live chat with guitarist Phil Collen today (Monday, August 3) at 9 a.m. PST, as well as a 33% off discount store-wide for the whole week.Def Leppard says: “Follow along with the Def Leppard social channels all week long as we celebrate the album anniversary with ‘Hysteria’ artifacts, commentary, music videos, merch, a contest giveaway, and more!”