Today marks the 30th anniversary of the death of Marvin Gaye, an irreplaceable presence in soul music that’s never been filled in the decades since. International fans will never forget the classic tracks produced by socially conscious Marvin ("What’s Going On?"), lover Marvin ("Let’s Get It On") and heartbroken Marvin ("When Did You Stop Loving Me, When Did I Stop Loving You?"). Sound off below: what stands as the greatest Marvin Gaye song of all time?