Louis Walsh: I'm sure Caroline Flack will teach Harry Styles a lot of new tricks
When The Xtra Factor presenter interviewed Louis on the show before Christmas, she mentioned that the Irishman had caught her eye because of his 'rather suave' festive red jacket.
A chuckling Louis, 59, replied, 'I'm too old for you!' and Caroline, 32, agreed: 'You're definitely too old!
But it was fun banter and the pair didn't fall out about the cheeky dig.
'She knew I was just having fun,' Louis tells Now's Dan Wootton.
'He's a bit young for her but I'm sure she's going to teach him lots of new tricks!'