Please help...who the hell am I thinking of?

[FuzzyPlum]

I heard a snippet of a song on the radio today that I haven't heard for a while and I'm going mad trying to work out who the singer is/what the song is. I now don't have any tune or lyrics in my head and its driving me mad.
The song is really evocative of my childhood and I'm thinking it was released in either 1980 or 1981 (possibly 82 at a push).
The song is by a guy with a really amazing voice. He sounds like a woman. I know there's a music video; all I can remember is this chap spends most of the song looking into a mirror- possibly in a theatre dressing room. There might be a woman later on sat next to him, but I'm not sure.
Its a British person and I think probably a UK one hit wonder.

Has anyone any idea in the slightest who on Earth I'm talking about? Its killing me trying to work it out. I have the song on the tip of my tongue but I cant quite get it.