WINDSOR, ENGLAND - APRIL 21: Queen Elizabeth II meet well wishers on a walk about around Windsor on her 90th Birthday on April 21, 2016 in Windsor, England. (Photo by Samir Hussein/WireImage)
WINDSOR, ENGLAND - APRIL 21: Queen Elizabeth II meet well wishers on a walk about around Windsor on her 90th Birthday on April 21, 2016 in Windsor, England. (Photo by Samir Hussein/WireImage)