The third in line to the throne, who is known for his love of a good boozy night out, is said to have planned an after-party at Buckingham Palace following brother William’s wedding to Kate Middleton on Friday.
According to The Sun, Harry and his nightclub owner pal Guy Pelly are overseeing the bash, to which about 300 people have been invited, and caterers have been told to have early-morning fry-ups on standby for anyone still awake.
And the younger royals will have the palace to themselves as the Queen and Prince Philip will head to Windsor Castle later in the afternoon.
A source told the newspaper: "It won't be for the oldies but the young ones. Harry has organised a survivors' breakfast. He is determined to make this a night to remember."