"Ocean Eyes" is a song by Billie Eilish, released in 2015. It features a soft, ethereal sound with gentle melodies and introspective lyrics. The song gained popularity for its haunting vocals and emotional depth, showcasing Eilish's unique style. The track was initially written by Billie Eilish and her brother Finneas O'Connell for a dance class. It quickly went viral after being uploaded to SoundCloud, leading to a record deal and Eilish's rise to fame. "Ocean Eyes" is often praised for its simplicity and the way it captures feelings of longing and vulnerability.