Dr John

In this April 26, 2008 file photo, Dr. John performs during the 2008 New Orleans Jazz & Heritage Festival in New Orleans. The family of the Louisiana-born musician known as Dr. John says the celebrated singer and piano player who blended black and white musical influence with a hoodoo-infused stage persona and gravelly bayou drawl, has died. He was 77. A family statement released by his publicist says Dr. John, who was born Mac Rebennack, died early Thursday of a heart attack. (AP Photo/Dave Martin, File)