Aretha Franklin performs Rock Steady live on Soul Train in 1973, episode 55.

Now this is a serious sampletastic record, used heavily in late 80s hip-hop for its vocal breakdown. Here’s just one example, the incenduary Mi Uzi Weighs a Ton by Public Enemy:

That’s where I think I first encountered it. The song itself is effortless upbeat soul by Aretha, pulsating and demanding to be danced to.