Karen Hauer is marking a major milestone and has taken to social media to celebrate the news with fans.The Strictly star posted a glamorous snapshot showing her dressed in a plunging silver top, high-waisted black pants, and sheer black trousers as she shared her happy news.MORE: Strictly's Aljaz Skorjanec shares sweetest love note to wife Janette Manrara WATCH: Strictly's Karen Hauer causes a stir in fitness video with new boyfriend"A whole decade of dancing with @bbcstrictly," Karen, 39,