Chk Chk Boom

"Chk Chk Boom" is a song by South Korean boy band Stray Kids, taken from their ninth Korean-language extended play Ate (2024). It was released as the EP's lead single on July 19, 2024, by JYP Entertainment and Republic Records. A Latin-styled hip-hop track, the song was written by 3Racha, DallasK, Ronnie Icon, and BB Elliot. The accompanying music video, premiered on the same day, co-stars actors Ryan Reynolds and Hugh Jackman in Deadpool and Wolverine costumes, respectively.

Background and release
On June 19, 2024, Stray Kids announced their Korean-language ninth extended play, titled Ate, slated for release on July 19, accompanied by a trailer that teased the title for the lead single "Chk Chk Boom". It was confirmed again on the flyer-styled track listing posted on two days later, alongside the "Festival" remix version. The group teased all tracks of the EP, including "Chk Chk Boom", via a mashup video uploaded on July 10. Stray Kids teamed up with YouTube Shorts and launched a dance challenge to promoted the song on July 18, revealing snippet of the song and its choreography. The remix EP, including the original, "Deadeye", "Heatwave", and instrumental versions, was released on July 22.

Composition
"Chk Chk Boom" was written by the in-house production team 3Racha (Bang Chan, Changbin, and Han), and co-composed by DallasK, Ronnie Icon, and BB Elliot. It is described as a Latin-styled hip-hop track, talking about the "confidence to aim at the desired target more perfectly than anyone else." Alongside Korean and English, the song included Spanish words and Latin music flavor, including rap parts.

Music video
An accompanying music video for "Chk Chk Boom" premiered on July 19, 2024, concurrently with Ate, preceded by two teasers. Directed by Bang Jae-yeob, the music video begins with, on the fictional television channel CCB, Australian actor Hugh Jackman in Wolverine costumes being reporting weather news, but the broadcast was interrupted by Canadian-American actor Ryan Reynolds as a news presenter, who has issues with the toilet paper, making Jackman angrily walking away. Next, Reynolds sits at the desk and reports the "worldwide mysterious phenomena". After the song starts, it was followed by Stray Kids on the disarrayed world with colorful explosions and chaotic backdrops, and performing at various places in New York City. At the end, the visual shows Reynolds wearing Deadpool costumes along with Stray Kids in the studio. He sheepishly asks the group if the group are looking for an "older", "less agile" member, but they respond in the negative.

Live performances
Stray Kids debuted the live performance of "Chk Chk Boom" at Music Bank on July 19, 2024. They also performed the song at Show! Music Core on the 20th, and 2024 SBS Gayo Daejeon Summer on the 21st.

Track listing

 * Digital download and streaming – Remixes
 * 1) "Chk Chk Boom" – 2:28
 * 2) "Chk Chk Boom" (Deadeye version) – 2:14
 * 3) "Chk Chk Boom" (Heatwave version) – 2:20
 * 4) "Chk Chk Boom" (instrumental) – 2:28

Credits and personnel
Personnel


 * Stray Kids – lead vocals
 * Bang Chan (3Racha) – background vocals, lyrics, composition, arrangement, instruments, computer programming, digital editing, recording
 * Changbin (3Racha) – background vocals, lyrics, composition
 * Han (3Racha) – background vocals, lyrics, composition
 * Felix – background vocals
 * DallasK – composition, arrangement, instruments
 * Ronnie Icon – composition
 * BB Elliot – composition
 * Restart – arrangement, instruments
 * Chae Kang-hae – arrangement, instruments
 * Lee Kyeong-won – digital editing
 * Goo Hye-jin – recording
 * Manny Marroquin – mixing, mixing in Dolby Atmos
 * Chris Galland – mix engineering
 * Ramiro Fernandez-Seoane – assistant
 * Kevin Madigan – mix engineering in Dolby Atmos
 * Anthony Vilchis – assistant
 * Trey Station – assistant
 * Dave Kutch – mastering

Locations
 * JYPE Studios – recording
 * Channie's "Room" – recording
 * Larrabee Studios – mixing, mixing in Dolby Atmos
 * The Mastering Palace – mastering