C & J (pronounced "si-na-ji" as in "synergy") is a rwandan girl duo composed of sisters Clementine "Clemy" Umuhire and Janvière "Sista Jamy" Mushimyimana. Their musical style is heavily r&b and soul based with forays in afro pop and urban music. Signed to PlanB Multimedia, they enter the music scene as a duo with their first album "si.na.ji". The album features productions by TOP 5 SAI in house producer Junior Kadiebwe from who delivers two tracks.

Wibabara (C.Umuhire/J.Kadiebwe) Produced by Junior Kadiebwe Vocal arrengments by Clemy All instruments by Junior Kadiebwe

Urihe (C.Umuhire/J.Mushimyimana/J.Kadiebwe) Produced by Junior Kadiebwe Vocal arrengments by Clemy & Sista Jamy All instruments by Junior Kadiebwe