The third in Def Leppard's trilogy of Mutt Lange-produced '80s blockbusters, Hysteria presented the band's pop-informed hard-rocking roar writ larger than ever. With earworm hooks the size of mountain ranges and a weapons-grade onslaught of undeniable guitar licks, the album underlined the band's commitment to stomping genre boundaries beneath their boots. And from the measured, melodic grace of the title track to the primal, glam-rock stomp of "Pour Some Sugar on Me," Def Leppard had the chops to put their agenda across with arena-sized impact.