Royal fans can't deal with the latest sighting of Prince Louis.

He was born in April but his doting parents, the Duke and Duchess of Cambridge, have kept him out of the limelight this far. However, Prince William and Kate attended a state banquet at Buckingham Palace last night and travelled to London from their Norfolk residence for the occasion. They made the journey by helicopter bringing their baby son with him and their journey has since made its way to social media. The video was reportedly taken by a fan and has been shared on the fan account Tea Time with the Cambridges. It is extremely blurry but you can just make out Kate holding her baby son.

PRINCE LOUIS WITH KATE AND WILLIAM pic.twitter.com/L3wM0VWB1u

— Tea Time With The Cambridges (@TeaCambridges) October 23, 2018

One eagle-eyed fan noticed that he was wearing a blue jumper and has blonde hair like George, awwwww. There isn't any official confirmation that this video is of the Duke and Duchess but that hasn't stopped people from freaking out.

All I could see is that Louis seems to have on a pale blue sweater and blonde hair! Maybe he is wearing one like George had with "Louis" on it. ❤️

— Becky Stokes (@beckystokes1953) October 23, 2018

Prince Louis has only been pictured once since he was born, on his christening day and of course, fans have been wondering when they will next see him in public. It's been reported that he's changed a lot in this time, common with babies to be fair, and a source told Us Weekly that he is a very happy baby.

"Louis has changed a lot since the last photos of him. He's still very chubby but he's grown fast and has a lovely head of hair on him".

 "He's very quiet and content, always smiling and happy".