Music
The singer prevents Lady GaGa from reaching pole position, leaving her to spend a second week at number two with 'Bad Romance'.
US electro act Owl City climbs from last week's number eleven to four, while Aussie pop punk trio Short Stack debut at eight with 'Sweet December'.
Elsewhere, Australian Idol runner-up Hayley Warner enters at eleven with 'Good Day' and LMFAO's 'I'm In Miami Bitch' makes it to 37.
The top ten singles in full (click where possible for our reviews):
1. (1) Ke$ha: 'Tik Tok'
2. (2) Lady GaGa: 'Bad Romance'
3. (3) Stan Walker: 'Black Box'
4. (11) Owl City: 'Fireflies'
5. (4) Jay-Z ft. Alicia Keys: 'Empire State Of Mind'
6. (5) Jay Sean feat Lil Wayne: 'Down'
7. (7) Jason DeRulo: 'Whatcha Say'
8. (-) Short Stack: 'I Can See You'
9. (6) 3OH!3 ft. Katy Perry: 'Starstrukk'
10. (8) Guy Sebastian ft. Jordin Sparks: 'Art Of Love'
Singles Reviews
Matt Cardle: 'Amazing' reviewCould Matt Cardle's stock finally be on the rise?
The Sound
Ones to watch: LawsonDigital Spy finds out more about the fast-rising group.
Music Interviews
StooShe interview: 'We're not a girl group'Digital Spy talks to Stooshe about the Spice Girls, All Saints and debut album.
Album Reviews
The Ting Tings: 'Sounds From Nowheresville' reviewThe duo overcomplicate matters on their second studio album.
