After World War II, Jamaicans purchased radios in increasing numbers and were able to hear rhythm and blues music from the Southern United States in cities such as New Orleans by artists such as Fats Domino, Barbie Gaye, Rosco Gordon and Louis Jordan whose early recordings all contain the seeds of the "behind-the-beat" feel of ska and reggae. The stationing of American military forces during and after the war meant that Jamaicans could listen to military broadcasts of American music, and there was a constant influx of records from the United States. To meet the demand for that music, entrepreneurs such as Prince Buster, Coxsone Dodd, and Duke Reid formed sound systems.