Caroline Flack says that it is her goal to make Gary Barlow cry.

The Xtra Factor presenter has said that even though she sees a lot of tears from the contestants, there's one person that she would like to see sobbing:

"He’s the only X Factor judge who has never shed a tear during the show. It doesn’t take much to bring a tear to my eye. If I see someone who is upset, that always makes me cry. But Gary has never turned on the waterworks. We’re very keen to see it happen but we don’t want to do anything too cruel to him. It might have to come down to a plate of raw onions held close to his face."

The X Factor contestants will be facing their first public vote tonight so if any of Barlow's 'Boys' are voted off, Flack's wish may come true.

The X Factor is on ITV1 at 8pm tonight and the Xtra Factor is on ITV2 at 9pm.

Check out the highlights of Caroling Flack and singer Olly Murs as Xtra Factor presenters: