Sarah Harding has reportedly reunited with her former fiance Tom Crane.

The Girls Aloud singer - whose relationship with ex-boyfriend Theo De Vries ended after a drunken holiday bust-up on New Year's Day (01.01.12) in Austria - and DJ Tom are taking things slowly but friends say they can't be without each other.

A source told heat magazine: "Sarah and Tom just can't be without each other. They split because of their arguing but that's really improved since Sarah went to rehab last year."

Another friend said: "Tom's been round a lot. They're giving things another go but very tentatively while she gets better."

However, Sarah and Tom have no plans to go ahead with their cancelled wedding for now.

The friend said: "They're taking things slowly thins time. The wedding's not back on yet. They haven't ruled it out but it's going to take time."

Sarah spent time in rehab last year where she was treated for alcoholism and depression and also revealed it took three weeks of intensive treatment to help her break her dependence on prescription drug Zopiclone, which she started taking in 2006 to help her with sleep problems.