Peter King was born in 1938 in Enugu in the eastern region of Nigeria and grew up in Lokoja, Lagos and Port Harcourt. In 1957 he joined the Roy Chicago band in Ibadan, playing the Maracas and then the Conga drum. He moved to other bands in Ibadan and then Lagos, playing the double bass, drums and then the alto sax. In 1961 he went to London where he studied at various schools of music, including the Trinity College of Music.
While in London, Peter King joined with drummer Bayo Martins and trumpeter Mike Falana to form the "African Messengers" group. The group performed at festivals and clubs, and served as backup band for acts like The Four Tops, The Temptations and Diana Ross. The African Messengers recorded many 45rpm records. "Highlife Piccadilly", a fusion of Highlife and Jazz was a hit. Peter King formed another band "The Blues Builders" with which he toured Europe and Northern Africa.
Peter King returned to Nigeria in 1969, and with his group "The Voice of Africa" performed on the war front during the Nigerian Civil War. Returning to London in 1971 he toured Europe, America and Japan with his group "Shango". He assembled and arranged a big band to back the singing group Boney M on their first live concert tour across Europe in 1977. He recorded nine studio albums between 1975 and 1978, and wrote music for several plays and television shows. In 1979 King returned to Nigeria and formed the P.K band. He composed music for soap operas and recorded three further albums. In the early 1980s Peter King and his P.K. Band played on the NTA and at the National Museum, Lagos for three years.