Catherine, Duchess of Cambridge, Princess Charlotte of Cambridge, Prince George of Cambridge and Prince William, Duke of Cambridge look out from the balcony of Buckingham Palace during the Trooping the Colour parade on June 2017 in London.
Harry and William. William: "Don't mess with me. i'm going to be king someday." Harry: "Wanna get naked and party later? I've got nothing to lose and you get to hook up with a prince at Windsor Palace.
As Prince William turns 33, a look back at his most memorable moments