Jon Dette (born April 19, 1970) is a heavy metal drummer, best known for playing in Evildead, Iced Earth, Slayer, Testament, Anthrax, and Heathen. Dette is a left-handed drummer. He made heavy metal history in 2014 by touring and performing with Slayer and Anthrax together, making him the only drummer in history to tour with two of the "Big Four."