It's that time of year again - the rumour mill is in full swing as we speculate on who will be joining the judging panel on ' The X Factor ' 2014. So far Cheryl Cole and Simon Cowell are the only definitive names on the list, but Louis Walsh has also said he's confident he'll be back on the panel later this year too. Simon Cowell and Cheryl Cole have both confirmed they are returning to the UK ...