Beyoncé's 'If I Were A Boy' rises up one spot to second position, while Katy Perry's 'Hot 'N' Cold' also moves up one place and is now at number three.
Kanye West shoots up five places to fourth position with 'Love Lockdown', followed by The Killers' 'Human' at number five, which is up six places.
Meanwhile, Celine Dion's My Love: The Essential Collection rises up one place to the top of the album chart this week. Il Divo's The Promise debuts at number two, followed by Kings Of Leon's Only By The Night at number three.
The top ten singles in full:
1. (1) X Factor Finalists 2008: 'Hero'
2. (3) Beyoncé: 'If I Were A Boy'
3. (4) Katy Perry: 'Hot 'N' Cold'
4. (9) Kanye West: 'Love Lockdown'
5. (11) The Killers: 'Human'
6. (6) Pink: 'So What'
7. (5) Girls Aloud: 'The Promise'
8. (7) Kings Of Leon: 'Sex On Fire'
9. (-) T.I. ft. Rihanna: 'Live Your Life'
10. (2) Britney Spears: 'Womanizer'