Kilonzo released his first recording with Kilimambogo Brothers in 1975 when he released the song ' Mama Kifagio'. The group split in 1978 when Joseph Mwania and Joseph Sila left to form another group,
Original Kilimambogo Stars. Kilonzo, however, continued releasing music with Kilimambogo Brothers. Originally, he performed in
Kamba, his native language, but rose into national fame after releasing music in
Swahili, most notably, the patriotic song,' Fuata Nyayo' released in 1979. ==Death==