Swedish pop group Abba on Friday announced that they had written and recorded new songs 35 years after they split up. The band comprises four members – Agnetha Fältskog, Björn Ulvaeus, Benny Andersson, and Anni-Frid Lyngstad.

In an Instagram post, the famous four-piece band said they had performed their new songs as their computer-generated avatars. One of the two songs – I Still Have Faith in You – will feature in a television special that will air in December. The two-hour television show is co-produced by NBC and the BBC, The Guardian reported.

“The decision to go ahead with the exciting Abba avatar tour project had an unexpected consequence,” the group said. “We all felt that, after some 35 years, it could be fun to join forces again and go into the recording studio. So we did. And it was like time had stood still and we had only been away on a short holiday. An extremely joyful experience!”

Björn Ulvaeus said the band’s members had been digitally scanned and made to look like how they did in 1979, when they went on their last tour. He also announced that the group would go on a world tour in 2019.

Abba, which formed in 1972, first achieved fame in 1974 after winning the Eurovision song contest in England’s Brighton town for their song Waterloo. By 1983, when they split up, the band had released several hit songs such as Knowing Me, Knowing You, Take a Chance on Me, Dancing Queen and The Name of the Game, all of which topped the United Kingdom charts, The Guardian reported.