close Video King Charles' Trooping the Colour appearance displays his strength: expert Christopher Andersen, author of ‘The King,’ explained why the show must go on for the reigning British monarch. Join Fox News for access to this content Plus special access to select articles and other premium content with your account - free of charge. By entering your email and pushing continue, you are agreeing to Fox News' Terms of Use and Privacy Policy , which includes our Notice of Financial Incentive .
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For King Charles III, the show must go on. The British monarch, who was diagnosed with an undisclosed form of cancer earlier this year, will be attending Trooping the Colour on Saturday. The event is the second in his reign, and the first since his diagnosis was made by Buckingham Palace.
"Queen Elizabeth used to say, ‘I must be seen to be believed,’" Christopher Andersen, author of "The King," told Fox News Digital. "That meant she had to get out there in front of her people and show them that the monarchy was healthy, moving forward and all is well with the country. It’s the symbol of the country.
" TRY FOX NEWS' FUN NEW GAMES PAGE, WITH 6 GAMES TO CHOOSE FROM! King Charles III will appear in a carriage alongside his wife, Queen Camilla. (Chris Jackson/G.