Nkosinathi "Jay Sax" Nkosi was born and bred in Soshanguve North of Pretoria. The music bug bit him when he was 12, as he was exposed to a brass band that passed by his house and he followed the band. He was particularly interested in the Saxophone and enjoyed Kenny G’s music he then made a promise to himself that he would own a saxophone one day. As a self-taught musician he never looked back on his music career and he has been involved in different bands/artists such as Mmatema Moremi, Regalo Joints, 60 Hertz Projects, Sinky Mathe and Afrikan Roots, DJ Fortee, Playmaster, Metro FM Award Winner Nastee Nev, just to name a few. He is currently a member of The South African State Theatre Youth Choir and is also involved in many other projects.