In 1970, two deejays discovered they had the ability to take the dance floor on a journey by playing records back-to-back, continuously throughout the night. Soon clubs all over the world adopted this style of deejaying, and a new culture and music genre called "disco" emerged. Listen as deejay Joey Carvello, RFC Records owner Ray Caviano, author Tim Lawrence and co-host of Sound Opinions, Jim DeRogatis, discuss how disco grew from a small underground movement to the best selling music genre in the world.