CSR (group)

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CSR
CSR in July 2022
CSR in July 2022
L–R: Geumhee, Seoyeon, Sua, Duna,
Yeham, Yuna, Sihyeon
Background information
OriginSeoul, South Korea
Genres
Years active2022–present
LabelsA2Z Entertainment
Members
  • Geumhee
  • Sihyeon
  • Seoyeon
  • Yuna
  • Duna
  • Sua
  • Yeham

CSR (/si ɛs ɑːr/; Korean: 첫사랑; RR: Cheotsarang; lit. First Love) is a South Korean girl group formed and managed by A2Z Entertainment. The septet—consisting of members Sua, Geumhee, Sihyeon, Seoyeon, Yuna, Duna, and Yeham—was at the time of debut composed entirely of 17-year-olds, a first time in the K-pop industry. They made their official debut on July 27, 2022, with the release of their first extended play (EP) Sequence: 7272.

Name

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CSR is an abbreviation of Cheotsarang (lit. First Love).[1] The company stated on the name that, "taking advantage of all members being seventeen years old, the group plans to show various interpretations of first love and tell the story of the members growing up year by year".[2]

History

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2022: Introduction, debut with 'Sequence: 7272' and 'Sequence: 17&'

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On July 11, 2022, A2Z Entertainment (formerly Pop Music) announced that they would be debuting their first girl group.[3] The members were revealed through trailers on July 11 and July 12.[4][5] On July 12, the group's management company announced that the septet would be releasing their debut extended play Sequence: 7272 on July 28.[6] The music video for their debut lead single "Pop? Pop!" was released one day prior to the album's release,[7] and the press showcase was also held at Mastercard Hall in Yongsan-gu, Seoul on the afternoon of the 27th. The album was officially released on July 28.[8] The group made their broadcast debut on Mnet's M Countdown on July 28 to perform "Pop? Pop!".[9]

On November 17, the group released their first single album titled Sequence: 17&, with its lead single "♡Ticon" (pronounced "love-ticon").[10] With this release, CSR earned their first music show win on KBS's Music Bank on December 2.[11]

2023: 'Delight', leader switch and 'HBD To You (Midnight Ver.)'

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CSR released their Korean second extended play Delight, with its lead single "Shining Bright", on March 29, 2023.[12] On July 27, the leader of CSR was switched from Sua to Duna, as the group has rotational leaders for every anniversary.[13]

The group released a special digital single "HBD To You (Midnight Ver.)" on November 26, as commemoration of the first anniversary of the group's fandom, Maeum.[14] On December 22, it was announced that the group would be active as a trio (Sihyeon, Yuna, Sua) for the time being, as the remaining four members were in an overseas schedule.[15]

2024: Chuang Asia: Thailand, L'heure Bleue: Prologue and Japan debut

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On January 15, 2024, it was announced that members Geumhee, Seoyeon, Duna and Yeham would be participating in the survival show Produce Camp Asia: Thailand (or Chuang Asia).[16] On March 2, Seoyeon, Yeham and Geumhee were eliminated in the first elimination round in episode 5, finishing in 53rd, 57th and 59th place respectively.[17] On April 6, Duna was eliminated in the final episode, finishing 14th overall with 25,093,428 points, thus being unable to debut with Gen1es.[18]

The group released their second single album L'heure Bleue: Prologue on June 11, with its lead single "Pretty Mob".[19] This marked a year and 3 months after their previous comeback.[20] In addition, the group released their first Japanese extended play, titled L'heure Bleue, on July 3, and held a 5-stop Japan tour from June 29 to July 19.[21]

2025: Japan Tours, Red Soda Circle

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In January 2025, CSR announced they would do their 3rd Japan tour in February.[22] In October 2025, Yuna and Yeham started a separate group on YouTube, called Red Soda Circle, using the names Rina and Haru respectively.[23] In December 2025, CSR did their 4th Japan tour.[24]

Members

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  • Geumhee (금희)[25]
  • Sihyeon (시현)[26]
  • Seoyeon (서연)[27]
  • Yuna (유나)[28]
  • Duna (두나) - leader[29]
  • Sua (수아)[30]
  • Yeham (예함)[31]

Discography

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Extended plays

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List of extended plays, showing selected details, selected chart positions, and sales figures
Title Details Peak chart
positions 		Sales
KOR
[32]
Sequence: 7272
Track listing
  1. "72.72Hz" (열일곱)
  2. "Pop? Pop!" (첫사랑)
  3. "Manito" (비밀이야)
  4. "Toi et Moi" (지금 너에게 보내)
  5. "Euratcha!" (으랏차)
 16
Delight
  • Released: March 29, 2023
  • Label: CSR E&M
  • Formats: CD, digital download, streaming
Track listing
  1. "Signal" (열여덟)
  2. "Shining Bright" (빛을 따라서)
  3. "Picnic" (소풍)
  4. "Dandelion" (마음이 피어요)
 15

Single albums

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List of single albums, showing selected details, selected chart positions, and sales figures
Title Details Peak chart
positions 		Sales
KOR
[32]
Sequence: 17&
  • Released: November 17, 2022
  • Label: CSR E&M
  • Formats: CD, digital download, streaming
Track listing
  1. "♡Ticon" (러브티콘)
  2. "Anding (&)"
 31
L'heure Bleue: Prologue
  • Released: June 11, 2024
  • Label: CSR E&M
  • Formats: CD, digital download, streaming
Track listing
  1. "Hello" (열아홉)
  2. "Pretty Mob"
 42

Singles

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List of singles, showing year released, selected chart positions, and name of the album
Title Year Peak position Album
KOR
Down.
[37]
"Korean"
"Pop? Pop!" (첫사랑) 2022 87 Sequence: 7272
"♡Ticon" (LoveTicon, 러브티콘) 63 Sequence: 17&
"Shining Bright" (빛을 따라서) 2023 56 Delight
"Pretty Mob" 2024 77 L'heure Bleue: Prologue
"Japanese"
"Higher" 2024 — L'heure Bleue
"—" denotes releases that did not chart or were not released in that region.-->

Promotional singles

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List of promotional singles, showing year released, selected chart positions, and name of the album
Title Year Peak position Album
KOR
Down.
"HBD To You" (Midnight Ver.) 2023 — Non-album single
"HBD To You" (Korean Ver.) — Non-album single
"HBD To You" (Jersey Club Remix) 2024 — Non-album single
"—" denotes releases that did not chart or were not released in that region.-->

Videography

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Videography

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Title Year Director(s) Ref.
"Pop? Pop!" 2022 Choi Young-ji
(Pinklabel Visual) 		[38]
"♡Ticon" Yoo Sung-kyun
(Sunny Visual) 		[39]
"Shining Bright" 2023 Yoo Seong-gyun (Sunny Visual) [40]
"HBD To You" (Midnight Ver.) Cho Byung Hee [41]
"HBD To You" (Korean Ver.) [42]
"Pretty mob 응원법" 2024 Jihee Ahn (GAMSEONGDOM PROJECT) [43]
"열아홉 (HELLO)" CSR [44]
"Higher" Unknown [45]

Filmography

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Television show

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Year Title Role Notes Ref.
2024 Chuang Asia: Thailand Contestant Geumhee, Seoyeon, Duna, Yeham [16]

References

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