Isaac Hayes was born in Covington, Tennessee in 1942, the second-born child of Isaac Sr. and Eula Hayes, but after their deaths was raised by his grandparents, Mr. and Mrs. Willie Wade, Sr. The child of a poor family, he grew up picking cotton in Covington. He dropped out of high school, only to be encouraged later by his former high school teachers at Manassas High to get his diploma. He earned his diploma at the age of 21. He began singing at the age of five at his local church, and, soon after, he taught himself how to play the piano, electronic organ, flute, and saxophone.
In early 1971, Hayes composed music for the soundtrack of the blaxploitation film Shaft. (in the movie, he also appeared in a cameo role as the bartender of No Name Bar). The title theme, with its wah-wah guitar and multi-layered symphonic arrangement, would become a worldwide hit single, and spent two weeks at number one in the Billboard Hot 100 in November. The remainder of the album was mostly instrumentals covering big beat jazz, bluesy funk, and hard Stax-styled soul. The other two vocal songs, the social commentary "Soulville" and the nineteen-minute jam "Do Your Thing," would be edited down to hit singles. Hayes won an Academy Award for Best Original Song for the Theme from Shaft, and was nominated for Best Original Dramatic Score for the film's score.