Yousef Gnaoui Yousef Gnaoui (1984) a.k.a. Sef founded the rap group Flinke Namen together with his neighbour The Flexican when he was twenty. He mainly works as a rapper.Vlag (2023)View > The Thinker & the Prover (2022)View > Nnelg - Devil is a Lie (2022)View > Fatima Yamaha - Day We Met (2020) Director View > De wilde stad (2018) Muziek View > Sef - Wakker (2015) Director View >