13/12/2013 02:55 GMT | Updated 25/01/2014 16:01 GMT

Gary Barlow: 'Robbie Williams Is Too Busy To Replace Me On The X Factor'

Gary Barlow has dashed any hopes that Robbie Williams will replace him as a judge on next year's 'X Factor' because he's too busy.

The singer also joked that his Take That band mate wouldn't be as good as him as a judge either.

Gary with Robbie Williams

And Gary also had some career advice for Sam Bailey - who is hot favourite to be crowned the winner of this year's series.

"If they do a covers album with her then they are committing suicide," he warned. "They need to get a team of young writers like Celine [Dion] has just done.

"She’s made a contemporary record of young writers, is relevant in the charts today and on radio. That’s what they should do with Sam.

"People like her and are voting in their thousands and she could sell a lot of records," he said.

Earlier this week, we caught up with the former prison officer ahead of the 'X Factor' final this weekend to find out how she's coping with the pressure of being the favourite to win...