Malcolm 'Mac' John Rebennack Jr., better known by his stage name Dr. John, was an American singer and songwriter. His music combined blues, pop, jazz, boogie-woogie, funk, and rock and roll. Active as a session musician from the late 1950s until his death, he gained a following in the late 1960s after the release of his album Gris-Gris and his appearance at the Bath Festival of Blues and Progressive Music. He typically performed a lively, theatrical stage show inspired by medicine shows, Mardi ...