Kate Bosworth is adding a whole lotta sex appeal to the holidays in a stunning Christmas campaign for Topshop.

The blonde beauty performs a sultry version of the classic song "Winter Wonderland" in a mini-movie released by the clothing company.

Michael Polish, Kate's fiance, directed his bride-to-be in this beautifully-shot performance. Kate's custom-made Topshop evening dress is to die for.

Topshop is also hoping that her version of "Winter Wonderland" will make it to the Number 1 spot on iTunes during this holiday season. Time will tell!