Sienna Just Wore Her 2006 Met Gala Minidress for a Night Out With Noel Gallagher

The Christmas countdown is officially on! And how do we know? Because the Marks & Spencer Christmas advert has just hit screen. And the star is a certain Holly Willoughby - and her enviable wardrobe. We can't stop thinking about the fabulous purple coat that she wears during the ad - which is FINALLY available to…