Kylie Minogue might be a judge on rival singing show 'The Voice' but she's publicly backing sister Dannii Minogue to return to the judging panel on the next series of ' The X Factor '. Kylie has urged Simon Cowell to reinstate Dannii alongside himself and Cheryl Cole, and reckons it's what viewers want to see happen. Dannii and Kylie Minogue “Dannii has done so well on X Factor Australia, she ...