Denaun Montez Porter (born December 7, 1974), also known by the stage names Mr. Porter and Kon Artis, is an American rapper, singer, composer, and music producer. He was a member of Detroit hip-hop group D12 until its disbandment in 2018. He has a close association with rapper Eminem, often appearing on his tours and has produced for a manifold of other notable artists such as 50 Cent, Royce da 5'9", The Game, Method Man, Snoop Dogg, Jadakiss and more.