Most Disco dances have strong roots in Swing. The Hustle is believed to have originated in New York in 1970. It went through many incarnations in the seventies, with line dances for groups of people, solo movements that came and went, and partnership dances. Hustle is danced to the contemporary pop, Hip Hop, or “House” dance music of the last 20 years. Most People dance New York style or Swing Hustle. It is a fast, smooth dance, which is all about hands. The lady spins almost continuously, while her partner leads her back and forth in a “slotted” linear formation.
Read more about Disco/Hustle on Wikipedia.