She wasn't flown over for just X Factor. I doubt she would just do that. I think she's appeared at the Jingle Bell Ball at the O2? The studio isn't set up for her to sing that does sound a little weak, but thats the case.
Thousands of pounds paid to her. The mega star brother who died recently and she never spoke to Dermot, or sang one of his songs. Waste Waste of money.....