Pop fans rejoiced this week as ABBA announced their comeback with a virtual concert and new album - their first new material in 40 years.
If that wasn't exciting enough, member Benny Anderson revealed during the livestream announcement that the record includes a Christmas song.
Perhaps surprisingly, it will be ABBA's first ever festive song. The group never officially recorded a Christmas song, but members have recorded festive music outside of ABBA - notably Benny and Bjorn, who released a Christmas album in their pre-ABBA days as part of rock band The Hep Stars.
In 1981, singer Agnetha and her daughter Linda recorded Christmas album Nu Tandas Tusen Julejus, the title track of which is a traditional Swedish language festive song.
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