Sadek Bourghuiba (born 25 May 1991), known by the mononym Sadek (French pronunciation: [sadɛk]), is a French rapper from Neuilly-Plaisance, also known by aliases Johnny Niuuum and Sadek Niuum. He was signed to Hostile Records. End of 2015, Sadek released 6 freestyle tracks under the collective title Roulette-Russe to announce his next project for 2016, Nique le Casino. Six tracks were chosen being a reference to the number of bullets that can be inserted in the cylinder of a .357 Magnum gun, a popular arm in practice of this deadly game.