Written by Benny Andersson and Björn Ulvaeus. Lead vocal by Agnetha Fältskog, with Anni-Frid Lyngstad joining in on the chorus. Originally written for a "Mini-musical" ABBA performed at their 1977 live concerts, along with "I Wonder (Departure)", "I'm a Marionette" and "Get on the Carousel." With the exception of the last track, these songs appeared on ABBA's 1977 studio album, "The Album". ABBA also recorded the song in Spanish as ""Gracias por la Música".