ABBA have reunited to record their first new material in 35 years.
In a surprise announcement, the band said it was “like time had stood still” when they got together again.
They have recorded two new songs, one of which - I Still Have Faith In You - will be unveiled at the end of the year.
The four band members have been working together to plan a tour in which virtual reality avatars perform their songs.
A joint statement from Bjorn Ulvaeus, Benny Andersson, Agnetha Faltskog and Anni-Frid Lyngstad said: “The decision to go ahead with the exciting ABBA avatar tour project had an unexpected consequence.
"We all four felt that, after some 35 years, it could be fun to join forces again and get into the recording studio. So we did. And it was like time had stood still and that we only had been away on a short holiday. An extremely joyful experience!
“It resulted in two new songs and one of them, I Still Have Faith In You, will be performed by our digital selves in a TV special produced by NBC and the BBC aimed for broadcasting in December.
We may have come of age, but the song is new. And it feels good.”
In 2016, the foursome performed together on stage in Stockholm for the first time in more than 30 years, at a private party.
They split in 1982 and were reported to have turned down a $1 billion offer to reform in 2000.