Osei Boateng Jeffrey, better known by his stage name 'Hanttman' is an urban gospel artiste. He is a singer, rapper, songwriter, choreographer and music producer. His name HANTTMAN is an acronym which means; Head And Never The Tail, Marked for All Nations. The name was inspired by the scripture in Deuteronomy 28:13.

Jeff first found success growing up with performances in church.

Jeff was born on 18 April 1988 in Kaduna State, Nigeria to Emmanuel Boateng and Cecilia Osei. He started and completed his secondary education in Nigeria. At age 20, he moved to Ghana for tertiary education. In Ghana he joined a music group called Beond L where he was their lead singer. After some time, Hanttman went solo and started releasing tracks independently.

He has co-produced, released and worked on many songs, among them are I'm a winner, I'm a conqueror, be strong, lift him up.

HANTTMAN has worked with industry players like M.O.G. Music, Pst. Paa Kyeremanteng, Alpha de great. He is currently at Royalhouse Chapel Ahenfie Accra. Jeff is working harder to attain full recognition and relevance as a full artiste.