"The reason I did The X Factor is because my kids love it and it's so seldom your kids engage with what you're doing work-wise. My son sits playing Nintendo all the way through my concerts. They're not mad about what I do - but being a judge on The X Factor, they couldn't believe it. They were absolutely made up." Take That star Gary Barlow on his decision to sign up as a judge on the British version of The X Factor.