Prince Louis had a very pressing question for his mother, the Princess of Wales, on Buckingham Palace balcony as they watched the flypast.
The five-year-old royal could be seen waving as he awaited the RAF flypast - to honour the newly crowned King Charles and Queen Camilla.
As they waited for the flypast to start, after it was scaled down due to bad weather, Louis was seen adorably banging his fists on the balcony, impatiently waiting for it to start.
Lip reader Elisabeth Taunton told the Mirror little Louis asked his mother where the helicopters were - before the Princess of Wales assured them she could see them coming.
He then went on to quiz his father about 'what sort' they were - before he finally looked up in awe as the helicopters and the iconic Red Arrows flew overhead.
Yesterday, the five-year-old could be seen yawning and fidgeting during the two-hour service for his grandfather the King’s coronation.
But he disappeared for a stint in the middle - as part of a pre-planned arrangement to ensure the five-year-old did not become unsettled during the lengthy occasion.
But he made a surprise return for the national anthem at the end of the service and the procession out of the abbey. Footage showed him singing the national anthem God Save The King.
For many, his actions have been a refreshing reminder that even royal children are immune to the pomp and pageantry surrounding them."
One royal fan tweeted: "Prince Louis sang Queen instead of King bless him #Coronation"
Another wrote: "Prince Louis singing "God Save the Queen" has made my day. He's back!"
A third added: "Prince Louis saying "God save the Queen" during the national anthem is the most iconic moment of this spectacle!"
He processed out of the abbey with Charlotte and his parents at the end of service and meet with George, who is acting as one of the King’s Pages of Honour.
Louis was regally dressed in a Hainsworth Garter Blue Doeskin Tunic with specially designed lace work embellishment to the collar, cuffs and fronts, made by bespoke Savile Row tailors Dege and Skinner. His leg garment was black complete with Garter Blue stripe.
His leg garment was black complete with Garter Blue stripe.
Louis has become known for entertaining royal fans with his reactions during royal celebrations.
He was seen letting out a howl and clapping his hands over his ears on the Buckingham Palace balcony during the Platinum Jubilee flypast as his “Gan Gan” the late Queen told him what was happening.
