Phil Collen is an English guitarist and songwriter, best known as a member of the rock band Def Leppard. He was born on December 8, 1957, in Hackney, London. Collen joined Def Leppard in 1982, during a pivotal time for the band, contributing to their signature sound characterized by melodic hooks and layered harmonies. His work on landmark albums such as "Pyromania" (1983) and "Hysteria" (1987) played a crucial role in shaping the band's success, with hits like "Photograph," "Pour Some Sugar on Me," and "Love Bites." Collen's guitar work is noted for its blend of hard rock and melodic elements, incorporating both aggressive riffs and intricate solos. Beyond Def Leppard, Collen has explored various musical styles, including blues and punk rock, and has worked on solo projects, such as his album "Slang" and the side project Manraze. His influence extends beyond his performance, as he has been a key figure in the evolution of the glam metal genre and has inspired numerous guitarists. Collen's longevity in the music industry and his contributions to popular rock music solidify his status as a significant figure in the rock genre.