"Alien" is a song recorded by American singer Sabrina Carpenter and British DJ and record producer Jonas Blue, taken from both the Japanese editions of Blue's debut album Blue and Carpenter's album Singular: Act I. The track was written by Carpenter, Janee Bennett and its producer Blue. The song was released by Hollywood Records on March 16, 2018. "Alien" describes what it is like to be lost in someone's feelings and how alienating it can be. The song reached number one on Billboard's Dance Club Songs. It was accompanied by a music video directed by Carly Cusson premiered on her Vevo channel on March 29, 2018.

The idea for the song came about during a weekend meeting in London between the two artists. According to Sabrina, she describes what it’s like to be lost in someone’s feelings and how alienating that can be, hence the song's title.^[3]

Musically, "Alien" is a two minutes and fifty-four seconds song. In terms of music notation, "Alien" was composed using ⁴
₄ common time in the key of B flat minor, with a moderate tempo of 106 beats per minute.^[4] The song follows the chord progression of G♭maj7-A♭-B♭m(add4)-A♭sus in the verses and Carpenter's vocal range spans from the low note A♭3 to the high note of D♭5, giving the song one octave and three notes of range.^[4]

It was first released a vertical music video directed by Alexandra Gavillet through Spotify on March 16, 2018 and later on Vevo and YouTube on April 11, 2018.^[5][6] The music video was released through Vevo and YouTube on March 30, 2018 and was directed by Carly Cusson.^[7]

Recording and management

• Mastered at The Erchange Mike Marsh Mastering (Devon, England)
• Seven Summits Music/Pink Mic Music, Universal Music Publishing Ltd, Universal Songs Of PolyGram Int., Inc.

Personnel

Credits adapted from Blue (Japanese edition) liner notes.