The gorgeous eight-month-old was dressed in a white smock with blue embroidered detail across the front – almost identical to the one William wore when he was pictured with Princess Diana at Kensington Palace in 1983.
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George wears a smock almost identical to one worn by his dad 31 years ago
George's outfit evokes memories of William and his late mother, Princess Diana, as the royal trio begin the second leg of their royal tour in Australia.
Soon after landing in the iconic Australian city, Prince William mentioned his late mother in a speech at Sydney Opera House.
"My mother's deep affection for Australia – which you were so kind to reciprocate – needs no reminder," said William, 31.
George, who is third in line to the throne, has captured hearts throughout the royal tour thanks to his gorgeous chubby cheeks, charismatic expressions and cute outfits.
Kate steps off the plane in Sydney in a sunny yellow dress with baby George
No sooner had the royal family stepped off a plane at Sydney to continue their journey to New Zealand, than his cuddly kangaroo backpack was spotted – to be sold out just hours later.
The eight-month-old's bag, featuring the Australian animal carrying a joey, had parents rushing to order the item online at the Australian Koala Foundation website.
The Rachel Riley smocked sailboat dungarees that George wore to his first ever official engagement in Wellington, New Zealand, also proved to be a hit.
Prince William as a baby with his mother, late Princess Diana
His navy outfit featuring cute sailboats across the front sold out just hours later, as George looks set to be kicking off his own 'effect'.
Kate's $450 black and white geometric print dress by Tory Burch worn to the same event was also a winner, demonstrating yet once again the 'Kate-effect'.