Isicathamiya is a singing style that originated from the Zulu people, a South African ethnic group. In European understanding, a cappella is also used to describe this form of singing.
Ladysmith Black Mambazo
Mbube is a form of South African vocal music, made famous by the South African group Ladysmith Black Mambazo. The word mbube means "lion" in Zulu. Traditionally performed a cappella, the members of the group are male although a few groups have a female singer. In this form, groups of voices singing homophonically in rhythmic unison are employed to create intricate harmonies and textures.
Solomon Linda
Ladysmith Black Mambazo in 2008 in Innsbruck, Austria
Solomon Linda's Original Evening Birds 1941