Holly Willoughby wears polka dot maxi dress from Topshop Holly Willoughby has become a fashion icon on This Morning, sharing details of her dresses and outfits with her Instagram followers from Monday through to Thursday. Holly, 37, likes to mix her outfits up, wearing designer dresses from Sandro Paris and high-road clothes from Marks and Spencer and Topshop, as advised by her stylist,…