During the Royal Air Force flypast, the highlight of Thursday’s Platinum Jubilee celebrations; Queen Elizabeth II’s face was lit up with joy, but it was one of her great-grandsons who stole the show.

Prince Louis, Prince William’s youngest child with Kate, the Duchess of Cambridge; had no qualms about expressing his emotions while standing next to the queen, fidgeting, covering his eyes, holding his head in his hands, and resting his chin throughout the ceremony on the balcony of Buckingham Palace.

But it was a photo of the 4-year-old boy holding his ears and mouth wide open; that went viral on social media, rapidly becoming a meme.