D12 (also known as D-12, The Dirty Dozen, D-Twizzy an Detroit-Twelve) is an American hip-hop group from Detroit, Michigan, which has had albums reach the top of the American, British, and Australian album charts: Devil's Night in 2001 and D12 World in 2004. D12 was formed in 1996, but only achieved mainstream success when its most accomplished member, Eminem, had risen to international fame and notoriety. Previously, D12 had been a notable contributor in the underground rap scene.