Mr. J. Medeiros is an American rapper, record producer, and songwriter. As well as releasing music under the name, Mr. J. Medeiros, he is responsible for forming the Hip Hop group The Procussions, is one half of the Hip Hop/Electronic duo AllttA, lead singer of Punk-Rap group thebandknives, and can be found as a song-writer and/or featured guest for numerous other artists as well as well as one-off projects like, "The Cutlery".