The Woman Out Of Hot Gossip

I'm trying to remember the name of the singer who had that hit with Hot Gossip in 1978. 'I lost my heart to a starship trooper'. She was The Woman Out Of Hot Gossip. But there's a hole in my memory where her name used to be. I watched them on Top of the Pops when I was 13, so I know she existed, in fact she ended up marrying Andrew Lloyd Webber. Was it Elaine Page? Arlene Philips? Gloria Steinem? Maybe it was Anthea Turner. No, that doesn't feel right.

How are you supposed to remember stuff without resorting to looking it up? I've been concentrating really hard all day but it still won't come, just this bleached out area of nothing, with dancers cavorting about all around it. Why do I want to know anyway? It was just a sequence of thoughts and then it came to a stop with whatever-her-name-is. I refuse to look this up on Google. It's a matter of principle. I must get my memory working again. 
Was it Susan Stranks?