The jaw-dropping tell-all from the lead singer of 1980s supergroup Ratt--and the dirty details of the riotous era when big-haired bands ruled the world.

Women. Spandex. Drugs. Hair spray. . . . Welcome to heavy metal rock 'n' roll, circa 1980, when all you needed was the right look, burning ambition, and a chance. Cranking out metal just as metal got hot, Ratt was the perfect band at the perfect time, and their hit single "Round and Round" became a top-selling anthem. The bigger Ratt got, the more excessive lead singer Stephen Pearcy and his "pussy pirates" became. There was nothing these...