The Rolling Stones brought out a special guest Tuesday night at Milwaukee’s Marcus Ampitheater for their only amphitheater date of their North American Zip Code. Seven songs into their Summerfest set, opening act Buddy Guy came onstage to join the band on “Champagne and Reefer.” They first played the Muddy Waters cover with Guy at New York’s Beacon Theater in 2006 (as seen in the Martin Scorsese documentary Shine A Light) and have since performed it with John Mayer and Eric Clapton.
