Which song did ABBA release in 1980 with a title referring to New Year's Eve?

ABBA released the song “Happy New Year” in 1980.

The Swedish pop group recorded the song for its 1980 album Super Trouper. Unlike a simple party anthem, its lyrics take a reflective view of the future, combining New Year's wishes with uncertainty about what the coming year may bring. That contrast helped it become a recurring seasonal song.

The recording was written by Benny Andersson and Björn Ulvaeus, with lead vocals by Agnetha Fältskog and Anni-Frid Lyngstad. It was issued as a single in some markets and has become especially associated with year-end radio and streaming playlists.

The title is sometimes confused with songs by other artists that use the same greeting. ABBA's track is identifiable by its 1980 release and its appearance on Super Trouper. It is also distinct from ABBA's “The Winner Takes It All,” another major song from the group's later period.