The iconic pop group will include a previously-unheard track called 'From a Twinkling Star to a Passing Angel' on a reissue of their final album The Visitors.
ABBA recorded the song back in 1981 and it was intended to make the original set. However, it eventually ended up on the studio floor, reports The Guardian.
The release of 'From a Twinkling Star to a Passing Angel' will be the first piece of new material for fans since 1994's Thank You for the Music boxset.
Throughout the years, ABBA members Benny Andersson and Björn Ulvaeus have remained opposed to the band reuniting, saying they would "like people to remember [them] as [they] were".
The repackaged version of The Visitors will be released on April 23.
ABBA released a deluxe version of their hit album Super Trouper last May.
Watch the music video for ABBA's 'When All Is Said And Done' below: