The Sugababes star said that she "just can't do the whole fake stuff", reported Digital Spy.
"With The X Factor, I've had a few interviews to sit on the panel and for some presenting stuff. I mean, I love The X Factor - there's been some big stars that have come from it and they're taking over. They've done so much for some artists and their bands."
"If they approached me I'd be like, 'Yeah', because I know I'd only go with my heart," she said. "I've been in the industry and I know it inside out and I would only go with my heart and go with voices who I believe could actually do something," she said.