Queensrÿche is an American progressive metal band formed in 1982 in Bellevue, Washington. Characterized by complex song structures, layered harmonies, and Geoff Tate's operatic vocals, they were a major contributor to the progressive metal genre. Their most significant work, "Operation: Mindcrime," is a concept album that has been widely regarded as a classic in the metal genre. Despite numerous line-up changes, Queensrÿche remains an influential entity in the world of rock and metal music.