"Cupid Carries a Gun" is a song by American rock band Marilyn Manson, released as the third single from their ninth studio album, The Pale Emperor (2015).

The lyrics to "Cupid Carries a Gun" were the first written by Manson for The Pale Emperor, although it was the final track to be recorded for the album. The song was co-written and produced with composer Tyler Bates, who was scheduled to begin scoring music for the US television series Salem shortly after work on The Pale Emperor was completed. "Cupid Carries a Gun" was still in an embryonic, "draft" stage when Bates started work on the score, who said that the track "immediately came to mind" when watching the opening title sequence to the show. After playing the sequence to Manson, the pair then began work on the track, which developed from its "draft" stage to the final album version over the course of a single night. The following day, Bates played the song for one of the show's producers, Brannon Braga, who said that it was the "perfect tone and attitude" for Salem.

"Cupid Carries a Gun" is a midtempo blues-inspiredrock song, which runs for a duration of four minutes and 59 seconds. The song begins with "ghost-like" electric-guitar, piano and an acoustic blues-guitar line, with Manson referencing "witch drums" on the intro. The song's lyrics go on to incorporate numerous other references to witchcraft, before invoking snakes, spiders and "black crow eyes". The title of the tour promoting The Pale Emperor, The Hell Not Hallelujah Tour, is derived from a lyric found on "Cupid Carries a Gun".

According to Ultimate Guitar, the song is written in common time with a moderately fast tempo of 120 beats per minute. The track follows a basic sequence of Em–D–Cm₇–Bsus₄–Bsus₄/G–Bsus₄/F# in the verse, while the chorus has a progression of E–G–D–A–E–G.

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