Marvin Gaye's take on R&B redefined American pop so thoroughly, it even transformed “The Star-Spangled Banner.” Beyond his singles, his catalog 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 channeled his spite into soul; and his duets with Tammi Terrell showcased his sweet playfulness.