While celebrating the monarch’s birthday with the annual Trooping the Colour in London on Saturday, Prince Louis, 7, gave an enthusiastic greeting to the crowd.

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 Royal Family assembled on the Buckingham Palace balcony following the Trooping the Colour parade marking King Charles III's official birthday. The monarch and Queen Camilla took centre stage as they awaited an aerial display featuring the Red Arrows,

Britain's King Charles and Queen Camilla ride a carriage as part of the Trooping the Colour parade which honours King Charles on his official birthday, in London, Britain,. REUTERS/Isabel Infantes LONDON (Reuters) -Britain's King Charles and other senior royals wore black armbands at the "Trooping the Colour" military parade on Saturday as a mark of respect for the victims of the Air India plane crash.

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.