Prince Harry proved he's record breaker by brokering the largest foreign currency trade in the world on Monday.
The multi-talented royal closed a deal worth €18bn (£15.5 billion).
Harry hit the trading floor along with as part of a charity day organised by City firm BCG.
CLICK ON THE PHOTO TO SEE WHICH CELEBS ATTENDED THE CHARITY EVENT
In doing so, he beat his brother William – whose transaction at the annual fancy dress fundraiser, aided by a trader dressed as Batman's sidekick Robin – was a mere €17bn.
The event honours the memory of 658 employees from BCG sister company, investment bank Cantor Fitzgerald, who died during the 9/11 attacks in New York.
Some of the money raised will go to Sentebale, Harry's charity for vulnerable children in Africa.
Other celebrities trying their hand in the tough world of trading on the day included cover girl Eva Herzigova, Princess Eugenie, Princess Beatrice and singer Duffy.
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