'The Ballad of Ronnie Drew' is at the top of the Irish singles chart for a second week.

The track, which is performed by acts including U2, Andrea Corr, Sinead O'Connor, The Dubliners and Kila, is a tribute to the Irish folk musician, who is battling cancer.

Meanwhile, Duffy's 'Mercy' climbs up one place to second position, pushing Glen Hansard and Marketa Irglova's 'Falling Slowly' down to number three.

Leona Lewis's 'Better In Time' enters the top ten at number eight. Elsewhere, Timbaland's 'Scream' rises up nine positions to tenth place.

Duffy's Rockferry is at the top of the album chart this week, followed by Glen Hansard and Marketa Irglova's Once at number two and Amy Winehouse's Back To Black at number three.

The top ten singles in full:

1. (1) Various: 'The Ballad of Ronnie Drew'
2. (3) Duffy: 'Mercy'
3. (2) Glen Hansard & Marketa Irglova: 'Falling Slowly'
4. (4) Basshunter: 'Now You're Gone'
5. (8) OneRepublic: 'Stop and Stare'
6. (5) Nickelback: 'Rockstar'
7. (7) H 'two' O ft. Platnum: 'What's It Gonna Be'
8. (40) Leona Lewis: 'Better In Time'
9. (9) Flo Rida ft. T-Pain: 'Low'
10. (19) Timbaland ft. Keri Hilson & Nicole Scherzinger: 'Scream'