Each year, Queen Elizabeth hosts up to three garden parties on the grounds of Buckingham Palace, as well as one at the Palace of Holyroodhouse in Scotland.
But for her first party of the season, the Queen asked son Prince Charles to step in as host.
Watch below: Charles clearly knows how to have a good time!
Prince Charles was joined by wife Camilla, Duchess of Cornwall and sister Princess Anne for the Wednesday afternoon gathering.
Garden parties have been held at Buckingham Palace since the 1860s as a way to recognize and reward public service.
The Queen has kept up a busy schedule this season, too. She attended the Royal Windsor Horse Show over the weekend and will attend the RHS Chelsea Flower Show next week.
She also held a very special meet-and-greet with her newest great-grandson: Archie!
The monarch, 93, has been slowly handing over certain royal duties to senior members of the royal family over the past few years.
She’s given several of her patronages to Prince William, Prince Harry and Kate Middleton, and Charles has begun attending many events in place of his mother.
He hosted over 500 engagements in 2018 — more than William and Harry combined.