A dazzling set of pearly whites is an absolute necessity for any celebrity, royal or Hollywood.

And the Duchess of Cambridge after being narrowly pitted to the top spot by Tulisa in the last vote has regained her crown as Britain’s Best Smiler.

The Daily Mail reports that Kate came out top in the poll, beating the likes of second-placed TV presenter Holly Willoughby, Kim Kardashian, David Beckham who came fourth, and X Factor judge Tulisa Contostavlos, who was placed fifth.

Poor Victoria Beckham will no doubt be a little upset to hear that she was named the worst smiler in the poll.

Others saddled with the ‘worst smile’ tag included Simon Cowell who came in second, Katie Price, former TOWIE star Amy Childs who came fourth and fifth-placed X Factor judge Louis Walsh.