New Delhi, Nov. 22 -- Kate Middleton, the Princess of Wales, spoke about her lighter hair for the first time after her blonder locks made headlines this autumn. On November 19, she attended the Royal Variety Performance in London with Prince William and shared the secret with actress Su Pollard.

Pollard told the Daily Mail that she said to Kate, "I like your hair, it looks a lot lighter."

Princess Kate reportedly replied, "It used to be brown, but it's gone light in the sunshine."

The princess shared the detail during a backstage chat, marking her return to the red carpet with William for the first time in two years.

In September, Kate Middleton appeared with Prince William at the Natural History Museum's gardens in London, showing of...