Isaac Lee Hayes, Jr. (August 20, 1942 – August 10, 2008) was an American singer-songwriter, actor, and producer. Hayes was one of the creative influences behind the southern soul music label Stax Records, where he served both as an in-house songwriter and as a record producer, teaming with his partner David Porter during the mid-1960s. Hayes, Porter, Bill Withers, the Sherman Brothers, Steve Cropper, and John Fogerty were inducted into the Songwriters Hall of Fame in 2005 in recognition of writing scores of notable songs for themselves, the duo Sam & Dave, Carla Thomas, and others. Hayes is also a 2002 inductee into the Rock and Roll Hall of Fame

The hit song "Soul Man", written by Hayes and Porter and first performed by Sam & Dave, has been recognized as one of the most influential songs of the past 50 years by the Grammy Hall of Fame. It was also honored by The Rock and Roll Hall of Fame, by Rolling Stone magazine, and by the RIAA as one of the Songs of the Century. During the late 1960s, Hayes also began recording music and he had several successful soul albums such as Hot Buttered Soul (1969) and Black Moses (1971). In addition to his work in popular music, he worked as a composer of musical scores for motion pictures.