"Mad About the Boy"....Who Is Singing This Version???

I adore the Noel Coward song "Mad About the Boy," and over the years have collected many, many versions of it. But I have one that's a mystery to me, and I need help!

Years ago I acquired a mp3 of a Very camp version, sung by a man, and it was identified as sung by Yul Brynner, from the 1969 film "Magic Christian." Well, I just realized that's not correct, by comparing it to a Youtube clip from the film. It's not the same voice at all. So that leaves me with not knowing who is singing the version I have...that sort of thing drives a collector crazy (not a long drive in my case).

Can someone please tell me who is singing this, and any other info about it (year, etc) would be helpful. Thanks!

"Mad About the Boy" by Unknown Singer

I am including the song on my March Queer Music Heritage radio show on "Camp Music" and would really love to be able to identify the singer.