Leon Rosselson sings this (very enthusiastically, I might add) on his CD Questions - Songs and Stories for Children CFCD 004 - Fuse Records.
Leon (vocal & guitar), Fiz Shapur (piano),and the children - Amy Dawson, Yolanda Rosselson, Alphonse Ryan, Ella Ryan and John-Jo Ryan (chorus). Leon says that he wrote it for Inter-Action (thanks to Ed Berman). There's a good version of 'Why does it have to be me?' on the same CD. I phoned him up one day, because I wasn't quite sure of the words and he very kindly emailed the words for both of these songs. I'm very grateful to him.