The Raelettes were a revolving door of singers assembled to provide Ray Charles with a solid-to-the-core vocal back up. Who is singing on this 1970 release on Ray Charles' Tangerine Records label, I can not tell you. It's not the incomparable Margie Hendrix (pictured below), that's for sure. But I'm pretty sure that is Ray giving the occasional "hey" in the background of the charming That Goes To Show You. May also be him on piano too. But I don't really know.
Until next time, we'll see you On The Flip-Side!