Many people know Hayes as the deep-voiced singer who brought the theme song to Shaft into the world. In 1972, he won the Oscar for that song, becoming the first African-American to win an Oscar in a non-acting category. Hayes went on to pick up three Grammy awards and was inducted into the Rock 'n' Roll Hall of Fame in 2002.
For people of a younger generation, however, Hayes will be remembered as the voice of Chef on South Park. To enjoy a video set to Chef's "Chocolate Salty Balls" in Hayes's honor, just read more.
Warning: The video includes some content that is NSFW, but it is also hilarious.