After years of speculation and several dropped hints, the group finally announced a reunion and new album in September, and released the singles "I still have faith in you" and "Don't shut me down".
Swedish pop sensation ABBA have made a comeback with their new album "Voyage", nearly 40 years after they split up, with a digital avatar concert eventually planned in London.
"Voyage" went live at midnight on Thursday in various time zones, to the delight of longtime fans worldwide.
"It doesn't sound dated, it doesn't sound 40 years ago," ABBA fan Emilie De Laere said at a listening party in Stockholm for the Swedish band's much-anticipated release.
Agnetha, Bjorn, Benny and Anni-Frid – forming the acronym ABBA – have not released any new music since their split in 1982, a year after their last album "The Visitors".
After years of speculation and several dropped hints, the group finally announced the reunion and new album in September, and released the singles "I still have faith in you" and "Don't shut me down".
The 10-track "Voyage" is not all the group will be releasing.
They will also unveil digital avatars – dubbed "ABBAtars" – at a concert in London in May, resembling their 1979 selves.
The holograms are the product of a years-long project, designed in partnership with a special effects company of Star Wars creator George Lucas.
Repeatedly delayed by technical difficulties, then by the Covid-19 pandemic, they will finally be unveiled in May.
The group initially dreamed up the idea of avatars, and then the music followed suit.
By 2018, ABBA had confirmed rumours of their return to the studio and that at least two new songs were being recorded.
But great pains were taken to keep the music a secret.
"First it was just two songs, and then we said: 'Well maybe we should do a few others', what do you say girls and they said 'Yeah'," Benny Andersson, 74, explained when the album was announced.
"Then I asked them 'why don't we do a full album?'," he added.
He and Bjorn Ulvaeus, 76, have been promoting the album in recent weeks, with 71-year-old Agnetha Faltskog and Anni-Frid Lyngstad, 75, opting to spare themselves from busy promotion schedules.
All promotion was halted for 24 hours this week after two people died at a tribute concert north of Stockholm on Tuesday evening.
In addition to the two songs released in September, a third track from the album was published in October, a modernised version of "Just A Notion", originally recorded in 1978 but never before released.
The newly released songs cannot escape being compared to hits like "Waterloo", "Dancing Queen", "Mamma Mia", "The Winner Takes It All" and "Money, Money, Money", but the band members are not worried about disappointing fans.