Denaun Porter (born December 7, 1978), also known by the stage names Mr. Porter and Kon Artis, is an American rapper and record producer originating from Detroit, Michigan, and born in North Carolina.

Porter was an original member of the group D12. Throughout his career he has both produced and performed vocally, producing songs for many notable artists such as Eminem, Busta Rhymes, Snoop Dogg and 50 Cent. Mr. Porter has also produced two songs for group Slaughterhouse’s major label debut mixtape, Welcome To: Our House.

Denaun is Eminem’s current hype man after the death of D12 band member, Proof. He is also officially signed to Eminem’s record label Shady Records and Eminem’s record label, Bad Half Entertainment as a producer and rapper and has worked with Shady artists Slaughterhouse, Bad Meets Evil, 50 Cent and D12. He is now most notably seen supporting Eminem live, mentioned previously as his hype man in his concerts.

Porter was a co-executive producer, with Eminem and Royce Da 5'9", for Bad Meets Evil’s debut EP Hell: The Sequel.