Tina Charles?

This afternoon, some Japanese friends of ours, Takashi & Kyoko Nakauchi and their 9-year-old daughter Misa, came round for tea. We haven't known them for long. He's Deputy General Manager of the Bank of Tokyo-Mitsubishi in Bangkok and has been posted around the world, including London and New York; she spent her youth in London and Germany. So they're well travelled and speak good English. Takashi spent ages pouring over my record collection. We put on some Ryuichi Sakamoto and it turned out they knew him slightly from their time in New York where he often ate at the same soba restaurant they went to. Misa played with our girls and showed them how to do some nifty origami. Nice, interesting family.

But here's a teaser. Kyoko's father worked at Mitsubishi in London in the early 80s and she told a funny story about how he'd hired a woman who'd been a pop singer and who'd had a no.1 hit in the70s. I'm trying to think who this could have been. Tina Charles?!