hamiya comes from a Zulu word "to walk or step on ones toes lightly." Derived from traditional call-and-response vocal music, combined with an open church-like sound. Mbube, a group male vocal style, evolved among Zulu migrant workers who lived in all-male communities. The international stars Ladysmith Black Mambazo exemplify the more refined isicathamiya sound. Isicathamaya choirs still appear in weekly competitions in Johannesburg and Durban.