Introducing Couleur d'Opium with his latest single "Heartless". Heartless is a blues and jazz song about heartbreaking and desillusion which you can find out within the artists vocal tone, you can tell because the emotion absolutely just rubbs off. The jazz feeling absolutely shows within the single. The vocals are something serious, the emotions absolutely pour out we think. It's reminiscent to a church vocal, we say that because the vocals are just absolutely disciplined. Listened below for yourself to see what we mean.