As the United Kingdom prepares to celebrate Trooping the Colour this weekend — a tradition honoring King Charles III’s official birthday — royal watchers are already reminiscing about some of the most delightful moments from past parades.

Though King Charles was born in November, the ceremonial celebration takes place each June, with the grand military pageantry and balcony appearance at Buckingham Palace drawing millions of viewers from around the world. But as majestic as the procession may be, it’s often the youngest royals who end up stealing the spotlight.

One unforgettable highlight from last year’s event? A charming exchange between Princess Charlotte and her younger brother, Prince Louis, that reminded everyone just how real and relatable even royal siblings can be.

During the flypast — a stunning display of red, white, and blue smoke trailing behind jets above London — little Louis reportedly turned to his father, Prince William, with wide-eyed enthusiasm: “Papa, Papa, look at all that colour!” The excitement was contagious.

But as the National Anthem began, the mood shifted. Ever the rule-follower, Charlotte seemed to notice her younger brother wasn’t quite sticking to royal protocol. When Louis began waving mid-anthem, she allegedly leaned over and gave him a sisterly reminder: “Put your hands down.”