Flo Rida's 'Low' is at the top of the Irish singles chart this week after climbing up six places.

Estelle is another high climber this week, moving up six places to number two with 'American Boy'. Chris Brown's 'With You' rises up eleven places to number three.

Duffy's 'Mercy', last week's number one, moves down three places in the chart. Mundy and Sharon Shannon's 'Galway Girl' and Basshunter's 'Now You're Gone' drop to fifth and sixth positions respectively.

Meanwhile, Madonna and Justin Timberlake's '4 Minutes' enters the top ten at number nine after rising up twenty-four places.

Mary Black's 25 Years 25 Songs remains at the top of the album chart this week, followed by Duffy's Rockferry at number two and Glen Hansard and Marketa Irglova's Once at number three.

The top ten singles in full:

1. (7) Flo Rida ft. T-Pain: 'Low'
2. (8) Estelle ft. Kanye West: 'American Boy'
3. (14) Chris Brown: 'With You'
4. (1) Duffy: 'Mercy'
5. (2) Mundy & Sharon Shannon: 'Galway Girl'
6. (3) Basshunter: 'Now You're Gone'
7. (4) Leona Lewis: 'Better In Time'
8. (9) OneRepublic: 'Stop and Stare'
9. (33) Madonna ft. Justin Timberlake: '4 Minutes'
10. (10) Nickelback: 'Rockstar'