Happy Birthday, Your Majesty! 🎉 The Prince and Princess of Wales shared a lovely behind-the-scenes glimpse of Trooping the Colour - from Prince George, Princess Charlotte, Prince Louis and Princess Kate’s arrival to the tens of thousands of royal fans filling The Mall outside Buckingham Palace 🇬🇧👑 📽️: princeandprincessofwales #princewilliam #katemiddleton #royalfamily