Prince Harry and Meghan Markle's May 19 wedding is fast approaching. It's been a whirlwind six months since the pair announced their engagement to the world and interest in the wedding has reached fever pitch. 

Kensington Palace has been drip-feeding pieces of information to the public about the big day via its Twitter account over the past few months, including the location, how the public will be involved, the identity of the official photographer and who is in charge of the music

Now it's confirmed some of the most important news — who will fill the role of best man. 

As expected, Harry's older brother Prince William will hold the special role on the big day. William is returning the favour, as Harry was his best man at his 2011 wedding to Kate Middleton

Prince William and Prince Harry

Announcing the news, the Palace said, "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." 

Can it be May 19 already?! 

Now, see Meghan Markle make her first appearance at yesterday's ANZAC services in London