When Def Leppard completed their Pyromania World Tour on Feb. 7, 1984, there was no doubt they'd made it to the big time. After 178 shows over almost exactly a year, they had moved from a support act ...

Pyromania was the album that changed everything for Def Leppard. Guitarist Phil Collen vividly remembers the rapid ascent that happened after their third album was released in January of 1983. "We ...

Forbes contributors publish independent expert analyses and insights. Hugh McIntyre covers music, with a focus on the global charts. Def Leppard recently re-released their album Pyromania as a deluxe ...