Looking for a song - 70's or 80's song?

The only words I can think of are at the end. It's a woman lead and
women in the background. It's an upbeat song. The words are:

Lead: a something, something, something, a something, something,
something,
Lead: something
BG: something
Lead: something
BG: something..
And it repeats, and the lead and BG are unison and go up in pitch on
every other one.

If you can help, thanks. It's been in my head for QUITE some time and
that's all I can think of.