Qongqothwane is a song by the Manhattan Brothers. Miriam Makeba was their lead singer in the 1950s, years before she left South Africa.
In the video she demonstrates the amazing clicking sounds of the letters "q" and "x" in her native language "Xhosa".
In her biography, Miriam sais that because of her Xhosa songs, journalists used to call her "click-click girl". She wasn't very happy about that though.