Rajabu Abdulkahali Ibrahim, Popularly Known As Harmonize, Is A Tanzanian Singer, Songwriter, And Entrepreneur. He Is Known To Pioneer The Afro Bongo Sound, A Fusion Of Bongo Flava And Elements Of Nigerian Afrobeat Music. He Is Also The Founder Of Konde Music Worldwide A Record Label.

Harmonize Started His Career In 2015 With His Hit Single “Aiyola '' Which Gained Attention And Became Very Popular Launching Him To Stardom And A Made Him A Key Artist To Watch Out For In The African Music Scene. His Other Notable Singles Include Kwangwaru With A Hundred Million Hits On UA-cam, Happy Birthday - A Birthday Classic That Has Received International Acclamation And Usage By Top Celebrities Among Them Lupita Nyongo On Her Birthday, Followed By Bado Then Kainama Featuring Burna Boy & Diamond Platnumz And Finally His Most Recent Single “Single Again” An Amapiano Song Produced By Dj Tarico That Has Received Tremendous Rotation In Africa And Now Catching Into The UK And USA.

Some Of The Artists Harmonize Has Worked With Are: Burna Boy, Phyno, Ibraah, Yemi Alade, Sarkodie, Mr Eazi, Spice - Jamaica, Krizbeats, Blaq Jerzee, Diamond Platnumz, Rich Mavoko, Spice Diana, Skiibii, Bruce Melodie, Skales, Khaligraph Jones, Eddy Kenzo, Mafikizolo And Dj Neptune And More.