Disco!

Disco is a genre of dance music that had its roots in clubs that catered to African American, psychedelic and other communities in New York City and Philadelphia during the late 1960s and early 1970s. While disco was a form of black commercial pop music and a craze among black gay men especially, it did not catch mainstream attention until it was picked up by the predominantly white gay clubs of New York. Latinos and women embraced disco as well, and the music eventually expanded to several other popular groups of the time.

Musical influences include funk and soul music. The disco sound has soaring, often reverberated vocals over a steady "four-on-the-floor" beat, an eighth note (quaver) or sixteenth note (semi-quaver) hi-hat pattern with an open hi-hat on the off-beat, and a prominent, syncopated electric bass line sometimes consisting of octaves. Strings, horns, electric pianos, and electric guitars create a lush background sound. Orchestral instruments such as the flute are often used for solo melodies, and unlike in rock, lead guitar is rarely used.

-Wikipedia

http://www.youtube.com/watch?v=cIojbjDb6Bg