The X Factor 4 final - preview

The songs for this year's X Factor final have been revealed:

Leon

White Christmas
Better the Devil You Know - with Kylie Minogue
You Don't Know Me

Rhydian

O Holy Night
You Raise Me Up - with Katherine Jenkins
Somewhere

Same Difference

All I Want For Christmas Is You
Any Dream Will Do - with Jason Donovan
Breaking Free

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X Factor poll for the final