Sadek Bourghuiba (born 25 May 1991) and known by the mononym Sadek is a French rapper from Neuilly-Plaisance. He also uses the pseudonym Johnny Niuuum or Sadek Niuum. He is signed to the French Hostile record label. 　　He started in battles and freestyles parisiens, and in 2007 performed during the streetball tournament "Le Quai 54" gaining favour when Mokobé asked for rappers to perform for 5 minutes.He also caught the attention of the event organizer Hammadoun Sidibé who encouraged him to launch a musical project. He appeared on various compilations like Street lourd, Capitale du Crime and cooperated with DJ Abdel for an album. Since then, he has released 3 mixtapes and one studio album with considerable chart success in France. 　　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. 　　In 2016, he co-starred with Gérard Depardieu in the film Tour de France.