Prince Louis well and truly stole the show at Thursday's Platinum Jubilee celebrations. As thousands of well-wishers gathered outside Buckingham Palace - and millions more watched live on television - Prince Louis treated us to a meme-worthy display as the family gathered on the balcony, thanks to his hilariously unabashed reaction to the noise of the flypast.
It's not the first time a young Royal has delighted onlookers with their antics (and had parents across the land sympathise with their visibly flustered Royal parents). From toddler tantrums to flashes of cheeky charm, we look back on the best Royal rascal moments...
Royal Kids Being Naughty
1 of 9Prince Louis at the Platinum Jubilee
Prince Louis steals the show as the Royal Family gathers on the balcony at the Queen's Platinum Jubilee.
2 of 9Prince Louis in 2019
Prince Louis has form. Here he is at the 2019 Trooping the Colour.
3 of 9Princess Charlotte at the King's Cup Regatta
Princess Charlotte sticks her tongue out at the King's Cup Regatta in 2019.
4 of 9Prince George on a seaplane
Prince George squishes his face against the window of a seaplane in Canada. (Check out our comprehensive guide: 'A Brief History Of Prince George Peering Through Windows')
5 of 9Savannah Phillips and Prince George
Savannah Phillips shushes her cousin Prince George as the Royal Family celebrate the Queen's birthday in 2018.
6 of 9Prince George at Charlotte christening
Prince George throws a tantrum at Princess Charlotte's christening.
7 of 9Prince George at the 2016 Royal International Air Tattoo
Prince William tries to calm Prince George as he has a mini meltdown at the Royal International Air Tattoo in Gloucestershire.
8 of 9Grace Van Cutsem
A classic of the genre: flower girl Grace Van Cutsem can't hide how fed up she is at Kate and Will's wedding.
9 of 9Young Prince Harry
Same balcony, different rascal. A young Prince Harry sticks his tongue out at the crowds.