So as I was saying, this was my other disco-dancing party piece - in those days every song ever written seemed to have a disco-cover-version, but Amii's "Knock On Wood" seems to have lasted the course. She is one of the underrated disco queens of that era, as her next move was to cover "Light My Fire" in her inimitable disco style.
Here is Ms Stewart modelling a nice line in headgear in a very, how shall I say, 'of-its-time' video. So get out your satin lycra disco trousers (mine were red, incidentally!) and boogie on down to "Knock On Wood" at http://www.youtube.com/watch?v=1ztZ7WFo3nw