LONDON, ENGLAND - DECEMBER 06: Prince Charles, Prince of Wales and Camilla, Duchess of Cornwall attend the annual Royal Variety Performance at Eventim Apollo on December 6, 2016 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, ENGLAND - DECEMBER 06: Prince Charles, Prince of Wales and Camilla, Duchess of Cornwall attend the annual Royal Variety Performance at Eventim Apollo on December 6, 2016 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, ENGLAND - DECEMBER 06: Camilla, Duchess of Cornwall greets David Walliams during the Royal Variety Performance at Eventim Apollo on December 6, 2016 in London, England. (Photo by Niklas Halle'n - WPA Pool/Getty Images)
LONDON, UNITED KINGDOM - DECEMBER 06: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Camilla, Duchess of Cornwall attends the annual Royal Variety Performance at Eventim Apollo on December 6, 2016 in London, England. (Photo by Max Mumby/Indigo/Getty Images)
LONDON, ENGLAND - DECEMBER 06: Camilla, Duchess of Cornwall reacts as she greets Lady Gaga during the Royal Variety Performance at Eventim Apollo on December 6, 2016 in London, England. (Photo by Niklas Halle'n- WPA Pool/Getty Images)
