King has had a long career as a singer, primarily in the calypso and soca genres. He made his singing debut at Crop Over in 1985, initially using the stage nameJohnny Ma Boy. He is a two-time Barbados Calypso Monarch and has released six solo albums, he won the Caribbean Song Contest which was held in Trinidad and Tobago in 1992 with "Hold You In A Song" which he did with Alison Hinds https://www.caribbean-beat.com/issue-47/standing-for-something King has also written songs for other artists and bands, including Atlantik.