Amazing acapella Marvin Gaye version of his "I Heard It Through the Grapevine." No auto-tuning, young 'uns. Though most say it's just the track from the record, isolated with video matched perfectly. Still. BTW, if you're a fan of music of that period, you might enjoy this.
Marvin Gaye - I Heard Throught the Grapevine... by Vilosophe