Former ABBA singer Agnetha Faltskog is getting Gary Barlow to help relaunch her career.

The blonde Swede is working on her first original material in 25 years and the Take That singer and songwriter has reportedly written two tracks which will appear on her album. One is said to be a duet, which is already being tipped as a hit.

A source told the Daily Star newspaper: "Gary is one of the UK's most successful songwriters so it makes sense for Agnetha to call in the big guns. It's a great mix of old and new together in one duet."

Gary, 41, recently said he had met the 62-year-old star when he was in Sweden. It is thought they were introduced by mutual friend Jorgen Elofsson, a songwriter who has written tracks for Britney Spears, Westlife and Kelly Clarkson and who is also helping Agnetha with her comeback.

The 'SOS' singer had pursued a solo career for a few years after ABBA split up in 1983 but released hardly anything throughout the 90s.

Her last album, 'My Colouring Book', saw her sing covers and was released in 2004.

While ABBA's music has become more popular than ever in recent years, the band - which also included Bjorn Ulvaeus, Benny Andersson and Anni-Frid Lyngstad - continue to resist a full scale reunion.

Bjorn said earlier this year: "We are the only group of that status that has never been reunited. I think that is cool.

"It is a strength for Abba that you remember those young, ambitious, energetic people during the 70s rather than some feeble old folks who feel compelled to get up and play all the time."