American rock band formed in Springfield, Missouri in 1979. They were first called the Edge and later became Sneak Preview before settling on their current name in 1985. The band's current lineup has remained intact for more than four decades, consisting of vocalist and bassist Doug Pinnick, drummer Jerry Gaskill and guitarist Ty Tabor. Their music combines progressive metal, funk and soul with vocal arrangements influenced by gospel, blues, and British Invasion rock groups. Despite a largely underground reputation as the "musician's musicians", King's X was pivotal in the early development of progressive metal, and produced a series of early records considered essential within the genre..