Dr. John

Malcolm John "Mac" Rebennack, Jr. (born November 21, 1940), better known by the stage name Dr. John (also Dr. John Creaux), is an American singer-songwriter, pianist and guitarist, whose music combines blues, pop, jazz as well as Zydeco, boogie woogie and rock and roll.

Details: http://en.wikipedia.org/wiki/Dr._John

Johnny Winter & Dr. John. In Session. Hamilton, Ontario. CAN. november 23th, 1983. The musicians: Brian Russel (guitar), John Paris (bass & harp), Terry Clark (drums).