I was lucky to see Roy several times in the late 70s- early 80s when he still toured in the U.S. He was, as you all know, a top-notch performer and just an all-round good guy.

His standard opening back then (at least over here) was "Black, White, Yellow and Green"... which was guaranteed to get the audience's attention. When he stopped touring, I shamelessly adopted the song and occasionally inflict it on the unprepared. I suspect Roy would approve....