Page "ABBA: The Album" Paragraph 55

A song written for the 1977 Tour with lyrics written by all four, jokingly depicting themselves as A, B, B and A.

The song was never considered for a studio version, but parts of the chorus were later reused in " Free as a Bumblebee ", and as that song never progressed beyond the demo, the chorus surfaced during the songwriting sessions for the stage musical Chess, as the UK number 1 hit single " I Know Him So Well ".