LONDON, ENGLAND - MAY 18: Queen Elizabeth II and Prince Harry attend at the annual Chelsea Flower show at Royal Hospital Chelsea on May 18, 2015 in London, England. (Photo by Julian Simmonds - WPA Pool / Getty Images)
LONDON, ENGLAND - MAY 18: Queen Elizabeth II and Prince Harry attend at the annual Chelsea Flower show at Royal Hospital Chelsea on May 18, 2015 in London, England. (Photo by Julian Simmonds - WPA Pool / Getty Images)