There are multiple artists with this name: 1) The Big Four were a mbaqanga group from Hammarsdale (South Africa) featuring Moses Dlamini, Hamilton Nzimande (Nzimande All Stars), Isaac Luvuno, and Brown Duma. The group is perhaps best known for their 1972 track, "Woza Friday". 2) A Belgium-Dutch rock band "The Belgium-Dutch formation The Big Four, named after the New Orleans rhythm, are 5 musicians with an equally strong sense of musicianship. This unique combination of musicians brings out a magical atmosphere that can be felt throughout the whole album."

Read more about The Big Four on Last.fm.