In 1987, Def Leppard released Hysteria, and the album became an instant success, selling millions of copies and producing seven hit singles. Def Leppard set out on a tour in support of the album that had audiences singing along to "Animal", "Pour Some Sugar On Me" and "Armageddon It". Everyone will know you are a fan of the classic rock album when you wear this 1987 Concert Def Leppard T-Shirt!