Harold Battiste “was instrumental in developing New Orleans music icon Mac Rebennack’s famous Dr. John persona, producing his celebrated first album, 1968’s ‘Gris Gris,’ a spooky, psychedelic-tinged stew of voodoo New Orleans R&B recorded in L.A. Battiste and Dr. John reportedly cut the album quickly using leftover studio time from a Sonny and Cher session.”