X factor judge, Cheryl Cole, is said to be getting cold feet and considering pulling out of a planned performance on the show.

Cheryl had been pencilled in to promote her new solo single on one of the live shows, however nerves are getting the better of her and Chez is having second thoughts about performing before Simon Cowell alone.

An insider told Now: “Although she’s worked with some of the biggest producers in pop, she feels lost without the rest of Girls Aloud. She isn’t considered the strongest singer in the band and she’s in a blind panic about [singing] on the show.

“She’s yet to agree to it because she’s so nervous, but we’re not sure how much choice she’ll have.

“She’s been told to look after her vocal chords as much as possible from now on, but she’s still smoking, which isn’t helping her voice, even though it eases her stress.”