So_Long_(ABBA_song)
So Long (ABBA song)
1974 single by ABBA
"So Long" is a song by Swedish pop group ABBA, released as the first single from their album ABBA. "So Long" was written and composed by Björn Ulvaeus & Benny Andersson, with lead vocals by Agnetha Fältskog and Anni-Frid Lyngstad.
The song is musically similar to "Waterloo". The single was backed with "I've Been Waiting for You," another song from the ABBA album.