A special double A-sided 7-inch single; Celebrating the 50th anniversary of one of Marvin Gaye's biggest hit, "How Sweet It (To Be Loved By You)"; Top ten pop and R&B smash in early 1965, also top 50 U.K.; B-side is a duet with Mary Wells, "Once Upon a Time"; Top ten R&B, top 20 Pop, top 50 U.K. in fall 1964.