The pop music industry is famously tough and unforgiving, and must seem especially so if you are an aspiring backing singer. Not only do you have to sing in English, you are expected to master another language altogether. The Hollies managed to do it pretty well in their 1963 cover version of Stay: notice how fluently they pronounce "bub bub sha wally" and how they can even use it correctly in a sentence, i.e.:
Well your mama don't mind bub bub sha wally.
Anyone else with a favourite gem of Back-up Singer English?