Chill Kill (song)

"Chill Kill" is a song recorded by South Korean girl group Red Velvet for their third studio album of the same name. It was released as the album's lead single by SM Entertainment on November 13, 2023.

Background and release
On September 18, 2023, SM Entertainment announced Red Velvet would be releasing their third studio album in November 2023. On October 18, it was announced that their third studio album titled What A Chill Kill would be released on November 13. Five days later, the album name was renamed to Chill Kill, and would contain ten tracks, including the lead single of the same name. On November 9, the highlight medley teaser video was released, followed by the music video teaser a day later. The song was released alongside its music video and the album on November 13.

Composition
"Chill Kill" was primarily written, composed, and arranged by Kenzie with Jonathan Gusmark, Ludvig Evers, Moa "Cazzi Opeia" Carlebecker, and Ellen Berg participating in the composition, and Moonshine in the arrangement. Described as a pop dance track, the song is characterized by "heavy bass, string melodies, dreamy synths, and bell rhythm" with its lyrics "expressing the narrative of a love affair and longing for the other person even in the midst of tragedy when the quiet world was turned upside down". The song is in the key of G minor with a tempo of 148 beats per minute.

Commercial performance
"Chill Kill" debuted at number 11 on South Korea's Circle Digital Chart in the chart issue dated November 12–18, 2023; on its component charts, the song debuted at number two on the Circle Download Chart, number 31 on the Circle Streaming Chart, and number 55 on the Circle BGM Chart. In Singapore, the song debuted at number 23 on the RIAS Top Regional Chart in the chart issue dated November 10–16, 2023, and peaked at number 17 the next week.

Promotion
Prior to the release of Chill Kill, on November 13, 2023, Red Velvet held a live event called "Red Velvet 'Chill Kill' Countdown Live" on YouTube, TikTok, Weverse, and Idol Plus, aimed at introducing the album and its tracks, including "Chill Kill", and connecting with their fanbase. The group subsequently performed on three music programs in the first week of promotion: KBS's Music Bank on November 17, MBC's Show! Music Core on November 18, and SBS's Inkigayo on November 19. In the second week of promotion, the group performed on two music programs: Music Bank on November 24, and ''Show! Music Core'' on November 25 where they won first place.

Credits and personnel
Credits adapted from album's liner notes.

Studio
 * SM LVYIN Studio – recording, digital editing
 * SM Blue Ocean Studio – mixing
 * 821 Sound – mastering

Personnel
 * SM Entertainment – executive producer
 * Red Velvet – vocals, background vocals
 * Kenzie – lyrics, composition, arrangement, vocal directing
 * Jonatan Gusmark (Moonshine) – composition, arrangement
 * Ludvig Evers (Moonshine) – composition, arrangement
 * Moa "Cazzi Opeia" Carlebecker – composition, background vocals
 * Ellen Berg – composition, background vocals
 * Lee Ji-hong – recording, digital editing
 * Kim Cheol-sun – mixing
 * Kwon Nam-woo – mastering