@HARMONIZE...Rajab Abdul Kahali (born 15 March 1991),[2] also known by his stage name Harmonize, is a Tanzanian singer, songwriter, and entrepreneur.[1] He first emerged on the national music scene in 2015 with the release of his debut single Aiyola after signing with WCB Wasafi, the label founded by Diamond Platnumz.[3] Following his departure from WCB Wasafi in 2019, Harmonize established his own record label, Konde Music Worldwide,[4] under which he has released several projects spanning genres such as Bongo Flava, Afropop, and Afrobeats.[5] Throughout his career, Harmonize has worked with many other African musicians, including Diamond Platnumz, Burna Boy, Yemi Alade, Ruger, Sarkodie and Naira Marley.