Tom the Great Sebastian was an early Jamaican sound system started by Tom Wong in 1950, named for a trapeze performer in Barnum and Bailey's circus. The group has been called "the all-time giant of sound systems" and helped launch several notable artists. Count Matchuki is generally credited as Tom's first deejay, before he joined Coxsone Dodd, and Duke Vin was one of Tom's selectors. The sound was also backed by Prince Buster. It was later known as Metromedia.