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.
On February 10, 2020, Sadek and three other people took part in the assault of French FRworldr Bassem Braïki.