His original name is Anuba cosmas AKA "kosi Mars", He is one of the Madi okollo's most promising musician with unmatched vocals who is widely known by his hit song (Asipepe) and many other songs like Abikuni, A'ita, How much and many others. Cosmas does not only do music but also he is a health worker, He works as a medical laboratory assistant in one of the health facilities in Madi okollo. He started his music career in the year 2020 where he also managed to creat his own music Crew called (GMF) great music foundation. Kosi Mars is a versatile musician who sings actually All the music genres including traditional folks, zouk, RnB, hip-hop, afro beat, reagaee etc...