Music
'Love In This Club', featuring a cameo from rapper Young Jeezy, vaults from 51 to one to become the singer's eighth US number one single.
Flo Rida's 'Low' and Chris Brown's 'With You' both drop a place, slipping to two and three respectively.
Elsewhere, Jordin Sparks's duet with Chris Brown, 'No Air', climbs from 13 to six, while Janet Jackson's 'Feedback' leaps from 51 to 19 to become her 29th US top 20 hit.
The top ten in full:
1. (51) Usher ft. Young Jeezy: 'Love In This Club'
2. (1) Flo Rida ft. T-Pain: 'Low'
3. (2) Chris Brown: 'With You'
4. (3) Rihanna: 'Don't Stop The Music'
5. (4) Sara Bareilles: 'Love Song'
6. (13) Jordin Sparks and Chris Brown: 'No Air'
7. (6) Timbaland ft. OneRepublic: 'Apologise'
8. (5) Alicia Keys: 'No One'
9. (9) Webbie, Lil' Phat & Lil' Boosie: 'Independent'
10. (7) Snoop Dogg: 'Sensual Seduction'
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