THE beloved pop band Abba have reformed and recorded new music, it has been revealed.

The Swedish pop group, Agnetha Fältskog, Björn Ulvaeus, Benny Andersson, and Anni-Frid Lyngstad, said the unexpected revival was a result of a decision to stage a virtual reality tour.

In a statement, the band said: "We all four felt that, after some 35 years, it could be fun to join forces again and go into the studio.

"And it was like time stood still and that we had only been away on a short holiday.

"An extremely joyful experience."

No release date has been set for the new songs - but one of them, titled I Still Have Faith In You will be premiered in December on a TV special broadcast by the BBC and NBC in the US.

The band added: "We may have come of age, but the song is new. And it feels good."

Abba have resisted efforts to reform since their last album in 1982.

Mamma Mia!, the musical based on their hits and produced by Ulvaeus and Andersson, has been seen by more than 50 million people and became a successful movie.

Their hits include Dancing Queen, SOS, Does Your Mother Know and I Have a Dream, among many others.