Youssef Soukouna, better known by his stage name Sefyu, is a French rapper of Senegalese descent. He comes from Aulnay-sous-Bois, a city in the French department of Seine-Saint-Denis. Sefyu originally aspired to become a professional soccer player, but his dream was derailed after he sustained an injury. He emerged on the hip-hop scene in the early 2000s.