Ladysmith Black Mambazo

Ladysmith Black Mambazo is a South African male choral group that sings in the vocal styles of isicathamiya and mbube. They rose to worldwide prominence as a result of singing with Paul Simon on his 1986 album Graceland, and have won multiple awards, including four Grammy Awards. They were formed by Joseph Shabalala in 1960 and later became one of South Africa's most prolific recording artists, with their releases receiving gold and platinum disc honors. The group has now become a mobile academy, teaching people about South Africa and its culture.

Source: Wikipedia