The Royal Family and Buckingham Palace are busy preparing to celebrate the King’s birthday in style, with the annual Trooping the Colour celebrations kicking off in a matter of hours

Ahead of Saturday's festivities, King Charles III also honored a handful of celebrities and public figures, including David Beckham, Gary Oldman and Elaine Paige.

Senior working royals including Prince William, Kate Middleton, Princess Anne, Prince Edward and Queen Camilla will reportedly take part in the king's birthday parade.

The king, queen and other senior royals are celebrating the monarch’s official birthday with the Trooping of the Color in London, while his actual birthday is in November.

Saturday’s event may be steeped in pomp and pageantry, but it carries deeper meaning for the British monarchy.

As per the British Army website, the ceremony of Trooping the Colour is thought to have first taken place during the reign of King Charles II in the 17th century. In 1748 it was decided that it would be used to mark the Sovereign’s official birthday.

King Charles will celebrate his official birthday with the Trooping the Colour parade on Saturday. Military pomp and pageantry will be on display in central London to mark the milestone, with the Queen,