During a visit to the Children's Global Media Summit in Manchester on Wednesday morning, Prince William shared the story behind the four-year-old's big moment.
While speaking to children about their royal plans for the holidays, William said: 'I went to my boy's nativity play. It was funny.'
'He was a sheep,' William added laughing.
CAN YOU JUST IMAGINE THAT!
William has been sharing a few more George insights recently, just this week the second-in-line to the throne handed over a handwritten letter from George to Santa.
You can see the adorable letter here.