Kebby Boy was born in the province of Rumonge, Burundi, where he completed his primary and secondary education. Kebby composed a song titled Tonya the penzi which iwa arranged by Roméo the producer of kirimba art studio in 2007. He started his professional career by recording the songs in the studio, and released his first single named Chozi Langu in 2008. He studied at the Islamic technical high school in Burundi and holds a national diploma. After the release of his single Wanyama Pori, it was presented to the director of the label. On 10 January 2016, he signed to the Light Entertainment Company label with which he recorded songs like My Dodo, Sina Lawama etc. in the Wasafi Records studio of the Tanzanian pop star Diamond Platnumz.