You’ve Got The Right One, Baby, Uh-huh

TV & radio commercial jingle (several variations) for Pepsi, unreleased.

Ray sang it, but I’m not so sure he also played the piano in the numerous variations.
The musicians nor the real backing singers for any of the commercials were credited (but they were certainly not the “Paylettes” posing with Ray in this campaign).
Given the magnitude of the campaign, Ray, for once, may have left his own RPM International studio to record the jingle (though, if so, for later variations he no doubt stayed ‘home’).
A persistent rumor says that Prince was involved in composing it. Read this.