Looking Strictly stunning: Fern Britton reveals an even slimmer figure as stars film Christmas special

By BEN TODD Showstopper: A slender and glamorous Fern Britton is filmed for the Christmas Day special She famously had her head ­digitally imposed on to a skinnier woman’s body for a Ryvita advert.But this time, the svelte figure on display really did belong to Fern ­Britton as she donned a sparkling ­turquoise mini-dress for a Strictly Come Dancing Christmas special. A year after stepping down