A photo posted by the official X account of the Prince and Princess of Wales has people online doing a double take.
The photo posted on Monday is of the princess herself on Christmas Day in 1983, but fans had to look twice to make sure it wasn't actually a photo of her youngest son Louis.
The tweet was part of Shaping Us, a campaign led by the Princess of Wales that aims to raise awareness of the critical importance of early childhood.
It read:
"Sharing some festive memories this Christmas because #ShapingUs is all about the vital importance of our early years and the role played by those around us in shaping the rest of our lives."
"📸 of The Princess, Christmas 1983"
You can see the photo below.
Sharing some festive memories this Christmas because #ShapingUs is all about the vital importance of our early years and the role played by those around us in shaping the rest of our lives.\n\n\xf0\x9f\x93\xb8 of The Princess, Christmas 1983\n\nDon\xe2\x80\x99t miss the Together at Christmas Carol Service\xe2\x80\xa6— (@)
Fans of the royal family just could not get over the resemblance between the photo of Prince Kate and her mini-me Louis.
@KensingtonRoyal I see Prince Louis \xf0\x9f\xa5\xb0\xe2\x9d\xa4\xef\xb8\x8f\xe2\x9d\xa4\xef\xb8\x8f So Adorbs \xf0\x9f\xa5\xb0— (@)
Like mother, like son. Truly uncanny!