Rajabu Abdul Kahali (born 15 March 1990), popularly known by his artist name Harmonize, is a Tanzanian Bongo Flava musician and music entrepeneur. Also sometimes referred to as Konde Boy, Jeshi, Tembo, Mbunge, Konde-Mabeyo. He is well known for his songs “Kwa Ngwaru”, featuring Diamond Platnumz, and “Show Me” featuring Rich Mavoko.