Def Leppard are one of the most successful hard rock bands to ever wield six strings; their blend of glam rock, hair metal, and big pop ballads led to massive wave of success in the '80s that the band has continued to ride over the ensuing decades. Emerging in the late '70s as part of the New Wave of British Heavy Metal, they gained a following outside of that scene by toning down their heavy riffs and emphasizing melody. After a couple of strong albums, they found crossover success with 1983's Pyromania, and skillfully used the fledgling MTV network to their advantage. They r...