The Musical Style of Billie Eilish: 18 Songs That Tap Into Heavy Emotions and Dark Fantasies

This haunting tune was co-written by Eilish's brother (who had roles on Glee and Modern Family) before Eilish recorded it at the age of 14. It describes someone looking into the eyes of a love interest and falling hard for them. In addition to the official music video, Eilish — who is also a dancer — posted a performance video for "Ocean Eyes" in 2016.