The Prince and Princess of Wales' children came out to celebrate their grandfather's official birthday today, Saturday, June 17.
Prince George, nine, Princess Charlotte, eight, and Prince Louis, five, were beaming and waving at the crowds during their carriage ride at The King's Trooping the Colour parade.
On first glance it might have looked like Prince George and Louis were in identical outfits - navy suits and red ties - but eagle eyed onlookers will have noticed one key difference. Prince Louis was wearing bright red shorts - a look he's become known for.