Leon clinches Christmas number one spot

The X Factor winner Leon Jackson has stormed to the top of the singles chart to take this year's Christmas number one title.

'When You Believe', a reworking of the Mariah Carey / Whitney Houston duet, sold more than 275,000 copies in its first seven days despite some delays with its availability.

Although the track holds the accolade for the fastest selling single of 2007, its first week total is under half that managed by Leona Lewis for 'A Moment Like This' in the same week of 2006.

Last week's number one, the Eva Cassidy / Katie Melua duet 'What A Wonderful World', falls to two on sales of 60,000.

Elsewhere, Sugababes rise to 13 with 'Change' and Kate Nash scrapes a top 40 placing with 'Pumpkin Soup'.

The top ten in full:

1. (-) Leon Jackson: 'When You Believe'
2. (1) Katie Melua & Eva Cassidy: 'What A Wonderful World'
3. (2) Leona Lewis: 'Bleeding Love'
4. (8) The Pogues ft. Kirsty MacColl: 'Fairytale of New York'
5. (3) Soulja Boy: 'Crank That (Soulja Boy)'
6. (4) Mariah Carey: 'All I Want For Christmas Is You'
7. (7) Take That: 'Rule The World'
8. (11) Mark Ronson ft. Amy Winehouse: 'Valerie'
9. (5) Girls Aloud: 'Call The Shots'
10. (6) Timbaland Ft. One Republic: 'Apologise'

> Who has the festive number one in the albums chart? Click here to find out!