Holly Willoughby has left fans divided after showing off the huge birthday tribute her Dancing On Ice colleagues had arranged for her.The 39 year old — who will celebrate her 40th birthday on Wednesday, 10 February — took to Instagram to share a gorgeous photograph of herself backstage at the hit ITV skating show. In the image, posted to her seven million followers on the social media site, Holly stuns in the pale blue one-shouldered dress she hosted the show alongside Phillip Schofield in.