Mbuso Theodore Mazibuko (born September 18, 1993), also known as Must Be Mazi, is a South African writer and music producer. In 2017 he started releasing music online, handling all the production himself. He grew up in Amanzimtoti, a middle-class suburban area bordering the south coast of Kwa-Zulu Natal. Mazibuko attended Maritzburg College (high school) and then graduated from Nelson Mandela University before fully pursuing his career in creative media.