Gwen Stefani is preparing for a fun Christmas with her family but one look at her throwback photo with Santa Claus and we are surprised she wants to celebrate the festive season at all. The star shared an epic childhood photo on Instagram from a visit with the big man in red, but he was looking far from jolly!MORE: Gwen Stefani in shock after news - 'How can this be happening?'In the awkward snapshot, Gwen was sat on Father Christmas' knee and trying desperately to smile, while her host could