The stunning Kate Middleton made her debut as Colonel of the regiment, taking over from Prince William.
William expressed his sadness at relinquishing the role but praised Kate's commitment and loyalty.
The parade concluded with a royal salute, and Kate took the salute as the new Colonel.
William drank a pint of Guinness, while Kate had a half pint, showing her refined taste.
It was a fairytale day with a surprising twist as Kate took on a new, significant role with grace and elegance.