Rajab Abdul Kahali (born 15 March 1991), popularly known by his stage name Harmonize, is a Tanzanian Bongo Flava musician and music entrepreneur. 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.
In 2017 MTV Base included him in their African edition of “Ones to Watch for 2017”. He was the first artist to sign a recording contract with Diamond Platnumz WCB Wasafi label, and has since gone on to found his own record label, Konde Music Worldwide
High-rated Tanzania recording artist and Konde Music WorldWide Boss, Harmonize returns with a new single titled Ikwepeshe.