Mr. J. Medeiros is an American Rapper, Record Producer, and Songwriter. As well as releasing music under the name, Mr. J. Medeiros , he is one half of the Electronic-Hip Hop duo AllttA , is responsible for forming the Hip Hop group The Procussions , one half of Future-Funk project Mais Oui , the lead singer of Punk-Rap outfit thebandknives , and the rapper in The Cutlery .