The little girl from Kent who made Simon Cowell cry - stars in The X Factor's Christmas single.

There was a time when the race to the Christmas Number One meant queuing up at your local record shop. Now, of course you're far more likely to download it. Well, the X Factor's festive single is likely to be in contention.

And this one is extra special - especially for a little girl from Kent who's not only starring in it, she's brought its producer to tears.

Hallie Robb first amazed Simon Cowell with her singing on a visit to the Demelza Hospice in Sittingbourne. Here's Andy Dickenson's report.