| "Oxytocin" | |
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| Song by Billie Eilish | |
| from the album Happier Than Ever | |
| Released | July 30, 2021 |
| Recorded | February 16, 2021 |
| Genre | |
| Length | 3:30 |
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| "Oxytocin" on YouTube | |
"Oxytocin" is a song by American singer-songwriter Billie Eilish from her second studio album Happier Than Ever released on July 30, 2021, through Darkroom and Interscope Records. She wrote it with the producer―her brother Finneas O'Connell, who also provided backing vocals. An EDM, electronica, electropop, industrial pop and techno song, "Oxytocin" was the last track created for the album. While composing it, Eilish aimed to make it sound "insane" when performed live, envisioning sexual imagery for the lyrics.
The song has been described by music critics as "horny", "upbeat" and Eilish's "sexiest song yet". Named after the oxytocin hormone, which is produced during sex, the track talks about sexuality and experimentation of the artist. Sonically, it drew comparisons to works of Crystal Castles, Grimes, Nine Inch Nails, and Timbaland, as well as to Eilish's debut studio album When We All Fall Asleep, Where Do We Go? (2019), especially to its biggest single "Bad Guy". Described as fan favorite,[1] "Oxytocin" received widespread acclaim from music critics praising its production, sentiment and vocal delivery.
"Oxytocin" charted in a number of countries upon the release of Happier Than Ever, including reaching the top 40 in Australia, Denmark, Hungary, Ireland, Lithuania, Norway, and the United Kingdom, while appearing at number 72 in the United States. Eilish performed the song for her Disney+ concert film Happier Than Ever: A Love Letter to Los Angeles, and on music festivals such as iHeartRadio Music Festival and Life Is Beautiful Music & Art Festival. "Oxytocin" is a part of a 2022–2023 world tour in support of Happier Than Ever set list interpolating elements of her 2017 single "Copycat".