Alfred Benjamin Crentsil is a Ghanaian musician. His ear-soothing repertoire of highlife music has won him numerous Ghanaian music awards, including the Fontomfrom Evergreen Award, a special honor bestowed upon a musician with 15–20 years of continuous music experience.

Alfred Benjamin Crentsil Jr was born in Prestea, Gold Coast (present-day Ghana), to the late Alfred Benjamin Crentsil Sr and Esi Yaaba in 1943. He was always known as AB junior until his father died in 1984, and since then he went as AB Crentsil. He attended Takoradi Methodist primary school for his primary education and later attended Rev Cleveland Middle School. After his middle-school examinations, AB worked as an electrical apprentice under his father.

While in middle school, Crentsil was introduced to the guitar by one of his teachers called Mr Thedoh. Crentsil became proficient in playing guitar and started singing along when playing it. He was simultaneously working as an electrician and playing with the Strollers Band created by Kwesi Donkor. Crentsil has played with the El Dorados and the Sweet Talk. He later spear-headed the Sweet Talk band with Smart Nkansah. He also played for the Ahenfo Band.

Crentsil opened a 16-track recording studio in 1990. Devil is among his best-known songs.

His big break came when he started playing with Kwesi Donkor's Strollers Band.

Did you know that Crentsil lead the Sweet Talk Band with Smart Nkansah