Gregg Karukas is a smooth jazz keyboardist and pianist who originally hails from the Washington, DC-Maryland area. He experimented with keyboards as a child, but it was not until his teens that he pursued music professionally. Gradually, he developed a relaxing smooth jazz style of music that made him a mainstay on smooth jazz radio stations. Karukas is always striving to write music that evokes strong emotions; his best-known single, "Nightshift", reflects the funky, smooth jazzy styling familiar to his fans. Karukas frequently collaborates with Brazilian composer Dori Caymmi.