Estelle makes it two weeks at number one

Estelle's 'American Boy', a collaboration with Kanye West, has topped the UK singles chart for a second consecutive week.

Rapper Flo Rida zooms from six to two with 'Low', already a number one in his native US, while Duffy's 'Mercy' slips to three.

Australian singer Sam Sparro leaps from 23 to 4 with debut single 'Black and Gold', while Chris Brown's 'With You' also penetrates the top ten, rising from 17 to eight.

Elsewhere, Usher bows at 19 with 'Love In This Club', his first solo single in three years; Snoop Dogg enters at 24 with 'Sensual Seduction'; and Britney Spears debuts at 36 with 'Break The Ice'.

The top ten UK singles in full (click links for reviews):

1. (1) Estelle ft. Kanye West: 'American Boy'
2. (6) Flo Rida ft. T-Pain: 'Low'
3. (2) Duffy: 'Mercy'
4. (23) Sam Sparro: 'Black and Gold'
5. (7) Madonna ft. Justin Timberlake: '4 Minutes'
6. (3) Leona Lewis: 'Better In Time' / 'Footprints In The Sand'
7. (5) Nickelback: 'Rockstar'
8. (17) Chris Brown: 'With You'
9. (4) OneRepublic: 'Stop and Stare'
10. (13) Alphabeat: 'Fascination

> Who's on top of the album chart this week? Click here to find out