Kate Middleton Debuts New 'Do As She Hits the London Trading Floor With William To Raise Millions For Charity

Kate Middleton and Prince William took to the London Financial District on Wednesday to raise more than $10 million for charity.

The Duchess of Cambridge donned noticeably shorter hair as the royal couple participated in ICAP's annual Christmas Charity Day, during which the brokerage firm donates the daily revenue from over 60 offices around the globe to various charitable causes.

WATCH: Kate Middleton Stuns in Princess Diana's Favorite Tiara

The royal palace tweeted a video of Kate participating in the deal closing, writing, "The Duchess of Cambridge celebrates closing a deal over the telephone at #ICAPCharityDay."

According to the royals, appoximately $550 million in deals were closed during the event, which the ICAP says helped raise over $12.5 million for various charities, including the Prince William-championed Skillforce, a charity for youth and education. Since 1993, ICAP says it has raised approximately $182 million with the event.

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While the royal family regularly participates in this fundraising event, this is Kate Middleton's first time taking part, representing the charities, Place2Be and SportsAid.

WATCH: See Princess Charlotte's Beautiful Christening Photos

The palace shared video of Kate playing basketball while entertaining people in the office (they incorrectly refer to her shot as a "#SlamDunk," but since it's for a good cause, we'll give them a pass!)

Earlier, the Duke and Duchess faced off in a competitive game of ping pong.

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What a day!

Watch the video below to see Kate wear Princess Diana's favorite tiara.