Friday Music

Written and recorded by Isaac Hayes in 1971- this was the theme song to the MGM film, Shaft. The following year it received an Academy Award for Best Original Song with Hayes becoming the first African American to win that honor (or any Academy Award in a non-acting category). 

Since then the tune has been played, covered, used to promote or parodied in multiple movies, television shows and advertisements.  It is said that this was where disco got its start.