An evening pause: Parton often likes to invoke the dumb blonde in her stage presence, but this is one thing she definitely is not. This performance demonstrates that she knows music, and how to do it, with great skill, talent, and intelligence.
The music will at times appear to be out of sync, because the visuals come from one live performance but the sound from another. They match remarkably well however. Ignore this minor issue, and instead watch the talent perform.
Hat tip Diane Zimmerman.