Taken from the album "The best of Booker T & The MG's
Al Jackson, Jr. (November 27, 1935 – October 1, 1975) was a drummer, producer, and songwriter. He is best known as a founding member of Booker T. & the M.G.'s, a group of session musicians who worked for Stax Records and produced their own instrumentals. Jackson was called "The Human Timekeeper" for his drumming ability.