The Ying Yang Twins are an Atlanta-based American crunk rap duo consisting of Kaine (born Eric Jackson on December 16,1978) and D-Roc (born Deongelo Holmes on February 23, 1979).

Ying Yang Twins are an Atlanta-based Crunk Rap duo consisting of Kaine (born Eric Jackson on December 16, 1978) and D-Roc (born Deongelo Holmes on February 23, 1979).They first came to notice in 2000 with the single “Whistle While You Twurk” which got play on urban and pop radio stations and peaked at #16 on the US R&B/Hip-Hop chart. Their full-length debut album, Thug Walkin’, came out later that year. Their next album, Alley: The Return of the Ying Yang Twins (2002) failed to sell 500,00