Prince George may just be turning three years old, but he's already had a massive influence on the fashion world. Now, new research from Rakuten Marketing has named the little royal as the biggest style icon for toddlers.

Over a third (39 per cent) of participants in the survey, who were all parents, stated that George has the biggest effect on what their toddlers wear.

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It's no surprise that the toddler came out on top, as he regularly wears clothes that become instant sell-outs.

THE PRINCE GEORGE EFFECT: ALL THE CLOTHES HE'S SOLD OUT

And we recently caught up with childrenswear designer Rachel Riley, whose designs George regularly wears – she told us that the increase in sales since the royal seal of approval has been incredible.

Coming in second place was Romeo Beckham, while his brother Cruz took the third spot.

The brothers' appearance in the top three was no surprise, either – they have, arguably, the world's most fashionable parents!

While mom Victoria is a hugely successful designer, dad David has fronted campaigns for some of the world's top fashion brands.

The research also revealed that endorsement from such influencers can cause parents to regularly spend as much as an additional $172 on clothing for their children.

And moms and dads actually spend nearly a fifth more on children's clothes ($975) versus their own clothing ($845) each year on average!