Louis Walsh has opened up about working with Cheryl and Simon Cowell on The X Factor, revealing that he thought Cheryl was "smug" after getting Beyoncé as a guest star. In Tuesday night's episode of Celebrity Big Brother, Louis spoke to Zeze Mills and David Potts about Alexandra Burke winning The X Factor in 2008. With the singer coming up against Louis' group JLS in the final, the former judge claimed that boss Simon showed he had a favourite when he got Beyonce to perform a duet with Alexandra in the final.