This year the majestic ceremony will take place on 14 June, officially celebrating Queen Elizabeth II's 88th birthday.
Given that Trooping the Colour is a renowned family affair, many royal watchers are hoping to see Prince George at the celebration on Saturday.
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In 2013, the heavily pregnant Duchess of Cambridge took part in the ceremony as her last public appearance before giving birth to George on 22 July.
Trooping the Colour 2013: Pregnant Kate makes her last public appearance before the birth of her royal baby
This year fans could catch a glimpse of the little Prince of Cambridge on the palace balcony, surrounded by his extended family including his cousins, uncle, grandparents and great-grandparents.
If George does make his Trooping the Colour debut on Saturday, he will be younger than his father Prince William was when he first joined the celebrations in 1984.
Gallery: Prince George
At the age of two, and accompanied by his parents Prince Charles and Diana, Princess of Wales, William delighted royal fans when he appeared on the palace balcony.
Two years later, a one-year-old Prince Harry sat in his mother's arms for his first Trooping the Colour.
George's parents Prince William and the Duchess of Cambridge, née Kate Middleton, may decide to wait until he is older before taking him to the ceremony, however.
The Queen visits Prince Philip in hospital after attending Trooping the Colour
Prince Edward and his wife Sophie chose not to take their daughter Louise until she was five, in 2009, and their son James, Viscount Severn, attended proceedings for the first time in 2013 also at the age of five.
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