Marvin Gaye's take on R&B redefined American pop so thoroughly, it even transformed “The Star-Spangled Banner”. Beyond his singles, his catalogue is jam-packed with evidence of his all-encompassing artistry: he flaunted his compositional skills while scoring the 1972 action flick Trouble Man, his poison-pen 1978 album Here, My Dear channelled his spite into soul and his duets with Tammi Terrell showcased his sweet playfulness.