Ke$ha knocks Jay-Z, Keys off US No.1

Pop singer Ke$ha has ended Jay-Z and Alicia Keys' five-week reign at the top of the US singles chart.

Her track 'TiK Tok' - already a chart-topper in Australia and a top five hit in the UK - climbs to the summit this week to become her maiden US number one.

Jay-Z and Keys slip to two with 'Empire State Of Mind', while Lady GaGa holds steady at three with 'Bad Romance'.

There are no new tracks in the top ten this week, but Rihanna manages to climb from 21 to 11 with 'Hard', the second single from her Rated R album.

Meanwhile, the highest new entries come from Eminem, who lands at 29 with Dr Dre collaboration 'Hell Breaks Loose', and Keys, whose solo version of 'Empire State Of Mind' charts at 55.

The top ten singles in full (click where possible for our reviews):

1. (2) Ke$ha: 'Tik Tok'
2. (1) Jay-Z ft. Alicia Keys: 'Empire State of Mind'
3. (3) Lady GaGa: 'Bad Romance'
4. (4) Iyaz: 'Replay'
5. (5) Owl City: 'Fireflies'
6. (6) David Guetta ft. Akon: 'Sexy Bitch'
7. (7) Jason Derulo: 'Whatcha Say'
8. (10) Jay Sean ft. Lil Wayne: 'Down'
9. (8) Black Eyed Peas: 'Meet Me Halfway'
10. (9) Britney Spears: '3'