Prince Louis stole the show again at this year's Trooping the Color as he pretended to fall asleep on the balcony of Buckingham Palace during the flight.
The six-year-old continued to yawn, before dropping his head and quickly raising it when he heard a plane approaching.
In previous appearances at the celebration, he was seen covering his ears and asking questions about the military plane flying overhead.
The celebration marks King Charles' birthday and more than 1,400 service personnel took part in the parade.
