Annihilator is a Canadian thrash metal band founded in 1984 by guitarist Jeff Waters and vocalist John Bates. They are the highest-selling thrash metal group from Canada in Canadian history, having sold more than three million albums worldwide, although most of their sales have been generated outside the band's home country. Along with Sacrifice, Voivod and Razor, Annihilator is credited as one of the "Big 4" of Canadian thrash metal.
