Nick Knowles has been spotted out and about in London with a mystery woman.The star, who starred in the 18th series of I'm A Celebrity... Get Me Out Of Here!, was photographed looking completely unrecognisable as he sported a huge bushy beard and long unkempt hair, which he brushed to the back.The 57 year old was dressed casually for the outing as he donned a navy blue long-sleeved shirt on top alongside a pair of grey denim jeans.