A New Orleans legend has died. According to a source close to his family, Malcolm John Rebennack, also known as Dr. John, died at the age of 77. Family says he died of an apparent heart attack. The family issued the following statement after his passing: Dr. John was a six-time Grammy Award-winning musician and a Rock & Roll Hall of Fame inductee. Dr. John was a New Orleans musical legend. According to his website, he began his career in the 1950 when he wrote and played guitar on records such as Professor Longhair, Art Neville, Joe Tex, Frankie Ford and Allen Toussaint. He also performed with Aretha Franklin, Van Morrison, Sonny and Cher and The Rolling Stones.As his career progressed he launched a solo career, developing the persona of Dr. John The Night Tripper. His breakthrough album was in 1968 called “Gris-Gris,” which introduced the world to voodoo, funk and his Creole roots.