Aaron "Big Voice Jack" Lerole (c. 1940 – 12 March 2003) was a South African singer and penny whistle player. Lerole was a leading performer in the kwela music of 1950s South Africa. Lerole was the bandleader of Elias and His Zig-Zag Jive Flutes, who had an international hit record in 1958 with "Tom Hark". He co-founded the fusion band Mango Groove in 1984, and later collaborated with Dave Matthews Band, a rock band from the United States.