Ronan Keating could be heading for number one

Ronan Keating looks set to challenge Holly Valance's number one spot in the UK singles chart.

The former Boyzone star released If Tomorrow Never Comes through Polydor on Monday.

According to unofficial midweek figures, the track has sold more copies than any of this week's new releases.

H and Claire also look set to enter the top five with their debut single DJ.