Def Leppard, formed in 1977 in Sheffield, England, is a British rock band celebrated for their polished production, soaring harmonies, and stadium-ready guitar hooks. The classic lineup—Joe Elliott (vocals), Rick Savage (bass), Rick Allen (drums), Phil Collen (guitar), and Vivian Campbell (guitar)—helped define the late‑’80s rock sound.

Their breakthrough came with High ‘n’ Dry (1981), but it was Pyromania (1983) that launched them into global superstardom, featuring hits like “Photograph” and “Rock of Ages.” The album sold over 10 million copies in the U.S.