Prince George is the Prince and Princess of Wales's eldest child, as well as the second in line to the throne.
The young royal, who will turn 10 in July, has previously been praised for his impeccable behavior at royal events - in particular at the late Queen's funeral last year.
However, despite his poised behavior now, George was once just like his five-year-old brother Prince Louis - who is known for his cheeky and comical antics.
Here, Express.co.uk delves into some of the times that Prince George showed off his cheeky side, with comparisons to some of Louis's hilarious face-pulling. The young royal, who was a few weeks shy of his second birthday, can be seen excitedly looking out onto the Mall - seemingly unaware of what was going on around him.
The ceremony was the late Queen Elizabeth II's annual birthday parade - an event that dates back to the time of Charles II in the 17th Century, when the Colors of a regiment were used as a rallying point in battle.
In 2019, a 14-month-old Prince Louis mirrored exactly what his elder brother had done four years prior. Prince George, who was then a few weeks away from his third birthday, made his second Buckingham Palace balcony appearance in June 2016.
It marked Princess Charlotte's balcony debut and George appeared to lean over the balcony edge to get a better look at the adoring crowds.
Prince William kept a close eye on his son who was clearly intrigued by what was going on around him.
Prince Louis made his balcony debut in 2019. The then-one-year-old captured the hearts of the nation as he beamed and waved at the crowds below while being held by his dad.