Meghan and her husband, 33, who was kitted out in his full ceremonial Blues and Royals uniform a la his wedding day three weeks ago, waved to crowds in the Mall. Although Queen Elizabeth already turned 92 on April 21, the royals understandably prefer to party and socialize in warmer weather.
Prince William and Kate Middleton's third child, Prince Louis, was noticeably absent from the event.
The nation will next catch a glimpse of the Duchess of Sussex on June 14, as she is preparing for her debut joint engagement with the Queen.More news: Apple Group FaceTime: Features, iOS 12 Release Date
Prince Philip, the Queen's husband, did not attend, having retired from public life previous year. The event was attended by other senior royals including the Queen, Prince Charles and the Duke and Duchess of Cambridge.
This year, the newest addition to the ceremony was, of course, the Duchess of Sussex Meghan Markle.
The actor talked to ET and revealed why the new royal couple is the flawless pair. From the beginnings of her relationship with Prince Harry, the former actress wore what made her feel comfortable, ignoring those tedious royal fashion rules.
The royal family gathered on the balcony of Buckingham Palace for the annual Trooping the Colour parade.
Prince Andrew, Charles' brother, also took part as Colonel of the Grenadier Guards for the first time. Over 1400 soldiers were in the ceremony, a tradition originating from the preparations for battle where the Regimental Colour or flag is "trooped" down the ranks of the soldiers so they can see them.