LONDON, UNITED KINGDOM - AUGUST 04: The Queen Looking Thoughtful Arriving At The Royal Opera House In Covent Garden For A Celebration Of Her Mother's 101st Birthday. (Photo by Tim Graham Photo Library via Getty Images)
LONDON, UNITED KINGDOM - AUGUST 04: The Queen Looking Thoughtful Arriving At The Royal Opera House In Covent Garden For A Celebration Of Her Mother's 101st Birthday. (Photo by Tim Graham Photo Library via Getty Images)