Cheeky Princess Charlotte stole the show on a family outing as she stuck her tongue out, making the crowds howl with laughter.
The sassy four-year-old was joined by her mum the Duchess of Cambridge, 37, dad Prince William, 37, and brother Prince George, six, at the King's Cup sailing regatta at Cowes in the Isle of Wight.
Grandparents Michael, 70, and Carole Middleton, 64, were also on hand to help keep an eye on the children as William and Kate took part in the charity sailing event.
Kate Middleton watched on as Charlotte stuck her tongue out to crowds and laughed along.
Princess Charlotte sticks her tongue out to crowds at Kings' Cup 2019 as Kate Middleton watches on.
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Carole and Kate Middleton react after Princess Charlotte stuck her tongue out to onlookers at King's Cup 2019.
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Prince George looked the part at the event wearing a striped top and captain's hat while flashing his gap-toothed grin.
He watched on as his dad placed third and mum placed eighth in the event that was won by adventurist Bear Grylls.
Prince George shows of his gap-toothed smile at the King's Cup.
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Picking up his first prize, Bear Grylls made a joke alluding to the fact that Prince George made his first step to becoming as fellow survivalist.
'And also Prince George, your first ant you ate today. And that is a great moment. Well done you,' he joked.
Riah MatthewsRiah Matthews is the Deputy Editor for that’s life! She started her journalism career in the UK at the Nottingham Post before moving to Australia and working on that's life! and the podcast How I Survived. Her work has also been published in the Daily Mail, Chat, Woman, Pick Me Up, Take a Break, Real People and on Newidea.com.au