As readers know, the event will take place this May 19 at Windsor Castle in England.
“Prince Harry has asked his brother The Duke of Cambridge to be his Best Man at his wedding to Ms. Meghan Markle,” wrote Kensington Palace in a statement this Thursday.
And if that wasn’t already a sign of brotherly love, William’s response was even sweeter.
“The Duke of Cambridge is honoured to have been asked, and is very much looking forward to supporting his brother at St George's Chapel, Windsor on May 19th,” tweeted the Palace along with a throwback photo of the two royal siblings.
The Palace also reminded fans that Harry served as Will’s best man when he married Kate Middleton in 2011. The couple had two kids soon after, and just welcomed their third child this Monday, April 23.
“Prince Harry served as best man to The Duke of Cambridge at his wedding to Miss Catherine Middleton in 2011,” added the Palace.
Are you surprised Harry picked William to be his best man? Who do you think will be Meghan Markle's maid of honor? Sound off below.
We pay for juicy info! Do you have a story for RadarOnline.com? Email us at firstname.lastname@example.org, or call us at 800-344-9598 any time, day or night.