Prince Louis had to be "tidied up" by mum the Princess of Wales as they took part in the first Trooping the Colour parade of King Charles' reign.
The pair were joined in a carriage by Queen Camilla, Prince George and Princess Charlotte for the birthday parade to travel from Buckingham Palace to Horse Guards Parade for the ceremony.
Once the show of military precision was over, the royals all piled back into the carriages to head back to the palace for the flypast, when Kate shared the sweet mum moment with her youngest son.
