The King's coronation will be marked by a huge flypast of aircraft over Buckingham Palace.
A total of 68 aircraft from the Royal Navy, British Army and Royal Air Force - including the Red Arrows - will take part in the aerial display that will jet over the palace at around 2.15pm on Saturday.
But it won't just be the Royal Family and those assembled outside Buckingham Palace who will be in with a chance of seeing the planes. Millions of people who live in east and southern England will also see the aircraft as they fly towards, and then back, from their airbases to the capital.