The album version of Boonoonoonoos (Caribbean slang for "Happiness") consisted of three different songs:
1) Boonoonoonoos (Frank Farian, Giorgio Sgarbi, Catherine Courage, Fred Jay)
2) That's Boonoonoonoos (Frank Farian, Rainer Maria Ehrhart) / Train to Skaville (Larry Dillon)
3) I Shall Sing (Van Morrison)
The single edit was cut from the full-length 12:08 to 5:38, then a few bars were edited out for a 5:26 version, and in Spain an earlier fade resulted in a 5:15 edit. The original (still unreleased) single edit was 4:56 according to the label timing. The 12" version was identical to the Limited Edition 2LP version of 11:23 min. despite being credited as 9:26 on the label.
Read more about this topic: We Kill The World / Boonoonoonoos