Kate Middleton is turning heads with her new, never-before-seen blond transformation.

The Princess of Wales officially showed off her new locks during an engagement at the Natural History Museum on Sept. 4, alongside Prince William.

It appeared the princess had lighter hair earlier in the summer, when she was spotted with blonder hair during a car ride on Aug. 24.

While Kate has undergone hair transformations before, this look is by far the biggest departure for the royal.

In the fall of 2020, the then-Duchess of Cambridge showed off honey-colored hair. The new hair was especially on display in a video announcement she made as patron of the National History Museum.