Hometown hero Dr. John helped close out the first weekend of the New Orleans Jazz Fest on Sunday by jumping on piano during Bruce Springsteen's headlining set for a funky rendition of "Something You Got."

Afterward, Springsteen acknowledged the Doctor's unmatched piano work. "It's all about that groove. You can't make that groove exactly in New Jersey. That's all there is to it," laughed Springsteen.

Earlier in the day, 71-year-old Dr. John, who this year was inducted into the Rock and Roll Hall of Fame, jammed with his 10-piece band looking dapper and lively.

Jazz Fest picks back up on Thursday, May 3rd through Sunday, May 6th, with headlining sets from the Eagles, My Morning Jacket, Florence and the Machine, the Neville Brothers and more.

(WATCH the performance video via YouTube and READ the entire JazzFest story from Rolling Stone)