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Bolbbalgan4

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Bolbbalgan4 (Korean: 볼빨간 사춘기; RR: Bolbbalgan Sachungi), also known as BOL4[1] or Blushing Youth (赤頬思春期, Akahō Shishunki), is a South Korean musical act formed by Shofar Music in 2016. They appeared on Superstar K6 in 2014 before signing a contract with their current agency. BOL4 was originally a duo consisting of Ahn Ji-young and Woo Ji-yoon.[2] They debuted with the single "Fight Day" from the mini-album Red Ickle on April 22, 2016. The first syllable of the Korean word sachungi "puberty" is pronounced the same as the Sino-Korean numeral four (sa), and accordingly the group name is sometimes shortened to BOL4.

Bolbbalgan4
Bolbbalgan4 in March 2018 Woo Ji-yoon (former) (left) and Ahn Ji-young (right)
Bolbbalgan4 in March 2018
Woo Ji-yoon (former) (left) and Ahn Ji-young (right)
Background information
Also known asBOL4[1]
Blushing Youth
OriginYeongju, Gyeongsang, South Korea
Genres
Years active2016–present
Labels
Members
Past members
  • Woo Ji-yoon
Website

The duo went on a temporary hiatus due to Ahn's music classes requirements in the first half of 2018.[3] Bolbbalgan4 signed with King Records[4] and debuted in Japan on June 5, 2019, with the mini-album Red Planet (Japan Edition).[5][6][7]

On April 2, 2020, Shofar Music announced that Woo Ji-yoon had left the duo, and Ahn Ji-young will continue to promote as Bolbbalgan4 as a solo act.[8]

Formation

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Jiyoung and Jiyoon were both raised in Yeongju, North Gyeongsang Province, and were classmates. They had previously competed Superstar K 6 in 2014. Since they were young they had dreamed of becoming singers. The name of their duo was built on the grounds that they wanted to make the kind of pure, honest music that can only be found in adolescence. Jiyoon portrays the "blushing" part of the name because she is often shy, while Jiyoung portrays "youth" because she acts like an adolescent girl.[9]

Members

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Current

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  • Ahn Ji-young (안지영) – main vocals[10]

Former

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  • Woo Ji-yoon (우지윤) – guitar, rapping, backing vocals[11][12]

Discography

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Studio albums

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Title Album details Peak chart positions Sales
KOR
[13]
Red Planet
Track listing
  1. "Galaxy" (우주를 줄게)
  2. "Fight Day" (싸운날)
  3. "You (=I)"
  4. "Grumpy" (심술)
  5. "Hard to Love" (나만 안되는 연애)
  6. "Chocolate" (초콜릿)
  7. "Freesia" (프리지아)
  8. "X Song"
  9. "Ring" (반지)
  10. "When You Fall in Love" (사랑에 빠졌을 때)
 15

Extended plays

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Title EP details Peak chart positions Sales
KOR
[15] 		JPN
[16] 		JPN Hot
[17] 		US
World
[18]
Korean
Red Ickle
  • Released: April 22, 2016
  • Label: Shofar Music
  • Formats: CD, digital download, streaming
Track listing
  1. "Chocolate" (초콜릿)
  2. "Fight Day" (싸운날)
  3. "Ring" (반지)
  4. "Grumpy" (심술)
  5. "Occasionally" (가끔씩)
 30 — — —
Red Diary Page.1
  • Released: September 28, 2017
  • Label: Shofar Music
  • Formats: CD, digital download, streaming
Track listing
  1. "Some" (썸탈꺼야)
  2. "Blue"
  3. "Fix Me" (고쳐주세요)
  4. "Imagine" (상상)
  5. "To My Youth" (나의 사춘기에게)
 7 — — 9
Red Diary Page.2
  • Released: May 25, 2018
  • Label: Shofar Music
  • Formats: CD, digital download, streaming
Track listing
  1. "Wind" (바람사람)
  2. "Travel" (여행)
  3. "Starlight" (야경)
  4. "Dear. Teddy Bear" (안녕, 곰인형)
  5. "Clip"
  6. "Lonely"
 5 — — —
Puberty Book I Bom
  • Released: April 2, 2019
  • Label: Shofar Music
  • Formats: CD, digital download, streaming
Track listing
  1. "Picnic" (나들이 갈까)
  2. "Bom" (나만, 봄)
  3. "Stars Over Me" (별 보러 갈래?)
  4. "Seattle Alone"
  5. "Mermaid"
 16 — — —
Two Five
  • Released: September 10, 2019
  • Label: Shofar Music
  • Formats: CD, digital download, streaming
Track listing
  1. "Workaholic" (워커홀릭)
  2. "25"
  3. "XX"
  4. "Taste"
  5. "Day Off" (낮(Day off))
  6. "XX" (acoustic ver.)
 6 — — —
Puberty Book II Pum
  • Released: May 13, 2020
  • Label: Shofar Music
  • Formats: CD, digital download, streaming
Track listing
  1. "Blank" (빈칸을 채워주시오)
  2. "Hug" (품)
  3. "Leo" (나비와 고양이) (feat. Baekhyun of Exo)
  4. "Counseling" (카운슬링)
  5. "Dandelion" (민들레)
 8 — — —
Seoul
  • Released: April 20, 2022
  • Label: Shofar Music
  • Formats: CD, digital download, streaming
Track listing
  1. "Love Story"
  2. "Seoul"
  3. "What Makes Us Beautiful" (이름디운 건)
  4. "In the Mirror"
  5. "Star" (별)
 26 — — —
Love.zip (사랑.zip)
  • Released: April 16, 2023
  • Label: Shofar Music
  • Formats: CD, digital download, streaming
Track listing
  1. "Chase Love Hard" (featuring Hwang Min-hyun)
  2. "Friend the End"
  3. "Rome"
  4. "When Love Becomes Goodbye" (사랑이 이별이 돼 가는 모습이)
  5. "Good Night" (좋은 꿈 꿔 0224.mp3)
 42 — — —
Merry Go Round
  • Released: December 12, 2023
  • Label: Shofar Music
  • Formats: CD, digital download, streaming
Track listing
  1. "Goodbye My Love"
  2. "Snowball" (스노우볼)
  3. "Eternal Love" (사랑할 수밖에)
  4. "Miss U, Dear"
  5. "Love"
 22 — — —
Japanese
Red Planet (Japan Edition)
  • Released: June 5, 2019
  • Label: King Records
  • Formats: CD, digital download, streaming
Track listing
  1. "Galaxy" (宇宙をあげる)
  2. "好きだと言って"
  3. "喧嘩した日"
  4. "You (=I)"
  5. "Grumpy" (意地悪)
  6. "私だけダメな恋"
 — 41 63 —
"—" denotes releases that did not chart or were not released in that region.

Singles

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As lead artist

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Title Year Peak chart positions Sales[a] Certifications[b] Album
KOR
[28] 		KOR
Songs
[c][29] 		JPN
[30]
Korean
"Fight Day" (싸운날) 2016 — * — — Red Ickle
"Galaxy" (우주를 줄게) 2 36 — Red Planet
"Hard to Love" (나만 안되는 연애) 12 46 —
"Tell Me You Love Me" (좋다고 말해)[d] 2 19 —
"Some" (썸 탈꺼야) 2017 1 1 — Red Diary Page.1
"To My Youth" (나의 사춘기에게) 3 2 —
"#First Love" (#첫사랑) 2018 2 2 — — Non-album single
"Travel" (여행) 1 1 — Red Diary Page.2
"Wind" (바람사람) 20 36 — — —
"Dejavu" 21 30 — Red Diary 'Hidden Track'
"Bom" (나만, 봄) 2019 1 4 — Puberty Book I Bom
"Stars Over Me" (별 보러 갈래?) 4 10 — —
"Mermaid" 22 30 —
"Workaholic" (워커홀릭) 1 2 — Two Five
"Leo" (나비와 고양이) (featuring Baekhyun) 2020 2 3 — Puberty Book II Pum
"Hug" (품) 30 19 —
"Atlantis Princess" (아틀란티스 소녀) 36 26 — Our Beloved BoA #2 – SM Station
"Dancing Cartoon" 49 — — Filmlet
"Butterfly Effect" (나비효과) 2021 23 37 — Butterfly Effect
"Space" (너는 내 세상이었어) 32 14 —
"Seoul" 2022 18 99 — Seoul
"Friend the End" 2023 15 — — Love.zip
"Chase Love Hard"
(featuring Hwang Min-hyun) 		36 — —
"Someday" (여름날)
(featuring Ha Hyun-sang) 		84 — — Non-album single
"Snowball" (스노우볼) 76 — — Merry Go Round
"Lips"
(featuring Giselle) 		2024 102 — — Non-album singles
"Bloom" 110 — —
Japanese
"Uchū o Ageru" (宇宙をあげる) 2019 — — — — — Red Planet (Japan Edition)
"Watashi no Shishunki e" (私の思春期へ) — — — Non-album singles
"Some" — —
"Love" 2020 — — 48
"Watashi dake, Haru" (私だけ、春) — — — —
"—" denotes releases that did not chart or were not released in that region.

Collaborations

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Title Year Peak chart positions Sales Album
KOR
[39] 		KOR
Hot
[40]
"Romantic Wish"
(with Sweden Laundry, Vanilla Acoustic, Kim Ji-soo, Kim Sa-rang, 20 Years Of Age and Letter Flow) 		2016 — — — Non-album singles
"We Loved" (남이 될 수 있을까)
(with 20 Years of Age) 		2017 1 4
"New York"
(with WH3N) 		2019 107 — —
"Awkward" (어색한 사이)
(with Vanilla Acoustic, Sweden Laundry, 20 Years of Age, Letter Flow, Kim Ji-soo, WH3N, Boramiyu, Choi Yuri) 		2020 116 —
"—" denotes releases that did not chart or were not released in that region.
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Title Year Peak chart positions Sales Album
KOR
[41] 		KOR
Hot
[42]
"Lost Without You" (우리집을 못 찾겠군요)
(Mad Clown feat. Bolbbalgan4) 		2017 5 77 Love Is a Dog from Hell
"Mohae" (모해)
(San E feat. Bolbbalgan4) 		5 23 Non-album singles
"Hurry Up"
(Sohee feat. Bolbbalgan4) 		2018 — — —
"Be Your Christmas"
(Sweden Laundry feat. Bolbbalgan4) 		— — Be Your Christmas
"—" denotes releases that did not chart or were not released in that region.

Soundtrack appearances

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Title Year Peak chart positions Sales Album
KOR
[45] 		KOR
Hot
[46]
"Hidden Path" (가리워진 길) 2014 60 — Misaeng OST Part 4
"Dream" (드림) 2016 54 Hwarang OST Part 3
"Hello" — — Lost Tale Mobile Game OST
"You and I From the Beginning" (처음부터 너와 나) 2017 3 10 The Emperor: Owner of the Mask OST Part 2
"My Trouble" 2018 48 52 — Why: The Real Reason You Got Dumped OST Part 1
"Love Letter" 2020 95 — Start-Up OST Part 12
"—" denotes releases that did not chart or were not released in that region.

Other charted songs

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Title Year Peak chart positions Sales Album
KOR
[50] 		KOR
Hot
[51]
"Grumpy" (심술) (Red Ickle version) 2016 38 94 Red Ickle
"You(=I)" 40 74 Red Planet
"When You Fall in Love" (사랑에 빠졌을 때) 78 —
"Grumpy" (심술) (Red Planet version) 83
"Blue" 2017 5 7 Red Diary Page.1
"Fix Me" (고쳐주세요) 11 11
"Imagine" (상상) 12 12
"Lonely" 2018 24 40 — Red Diary Page.2
"Starlight" (야경) 34 43
"Dear, Teddy Bear" (안녕, 곰인형) 42 52
"Clip" 65 66
"6 o'clock" 80 84 Red Diary 'Hidden Track'
"Picnic" (나들이 갈까) 2019 31 39 Puberty Book I Bom
"Seattle Alone" 43 49
"25" 33 — Two Five
"XX" 30
"Taste" 50
"Day Off" (낮) 59
"XX" (acoustic version) 117
"Blank" (빈칸을 채워주시오) 2020 108 Puberty Book II Pum
"Dandelion" (민들레) 143
"Counseling" (카운슬링) 164
"Red Lipstick" (빨간 립스틱) 31 Filmlet
"Love Story" 2022 16 Seoul
"What Makes Us Beautiful" (아름다운 건) 187
"Star" (별) 186
"Rome" 2023 158 Love.zip
"When Love Becomes Goodbye" (사랑이 이별이 돼 가는 모습이) 77
"Good Night" (좋은 꿈 꿔 0224.mp3) 180
"Eternal Love" (사랑할 수밖에) 33 Merry Go Round

Concert and tours

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Headlining concerts and tours

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  • BOL4 1st Solo Concert "Red Planet" (2016)
  • BOL4 1st Concert in Taipei (2017)
  • BOL4 2nd Solo Concert "Imagine" (2017-2018)
  • BOL4 3rd Solo Concert "Travel" (2018)
  • 2019 BOL4 Spring Solo Concert "Flower Energy" (2019)
  • 2019 BOL4 Asia Tour "Blossom" (2019)
  • 2019 BOL4 Tour Concert "Two Five" (2019)
  • BOL4 (赤頬思春期) Japan Live Tour 2020 "Love" (2020)
  • BOL4 Concert "Seoul" (2022)
  • 2023 BOL4 Concert in Taipei (2023)
  • BOL4 Concert "Love.zip" (2023)
  • 2023 BOL4 Asia Tour "Love.zip" (2023)
  • 2024 BOL4 Concert "Bloom" (2024)
  • 2025 BOL4 Asia Tour "Bloom" (2025)

BOL4 1st Solo Concert "Red Planet" (2016)

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Concert Date[58] City Country Venue
Red Planet No. B41120 November 20, 2016 Seoul South Korea Baekam Art Hall
Red Planet No. B4120304 December 3, 2016 Ewha Womans University (Samsung Hall)
December 4, 2016

BOL4 1st Concert in Taipei (2017)

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Date[59] City Country Venue Attendance
September 9, 2017 Taipei Taiwan Legacy Taipei 2,300[60]

BOL4 2nd Solo Concert "Imagine" (2017-2018)

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Date[61] City Country Venue Attendance
December 16, 2017 Seoul South Korea Blue Square iMarket Hall 6,500[62]
December 17, 2017
December 31, 2017 Busan Sohyang Theatre Shinhan Card Hall
February 3, 2018 Hong Kong KITEC (Rotunda 3) 1,500[63]
Total 8,000

BOL4 3rd Solo Concert "Travel" (2018)

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Date City Country Venue Attendance
2018 BOL4 2nd Concert in Taipei "Travel Together"[64][65]
June 30, 2018 Taipei Taiwan Taipei International Convention Center 3,000[66]
2018 BOL4 3rd Solo Concert "Travel"[67]
July 14, 2018 Seoul South Korea Olympic Hall 6,000[68]
July 15, 2018
2018 BOL4 (赤頬思春期) 1st Concert in Japan -旅-[69]
August 8, 2018 (2 parts) Tokyo Japan Toyosu PIT 2,500[70]
Total 11,500

2019 BOL4 Asia Tour "Blossom"

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Date City Country Venue
2019 BOL4 Spring Solo Concert "Flower Energy"[71][72]
May 4, 2019 Seoul South Korea Blue Square iMarket Hall
May 5, 2019
2019 BOL4 (赤頬思春期) Japan Premium Showcase[6]
June 6, 2019 Osaka Japan Banana Hall
June 8, 2019 Tokyo TSUTAYA O-East
2019 BOL4 Asia Tour "Blossom"[73]
June 15, 2019 Hong Kong KITEC (Star Hall)
July 13, 2019 Bangkok Thailand Moonstar Studio 8
November 9, 2019 Taipei Taiwan National Taiwan University Sports Center 1

2019 BOL4 Tour Concert "Two Five"

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Date[74] City Country Venue
November 30, 2019 Busan South Korea Sohyang Theatre Shinhan Card Hall
December 1, 2019
December 7, 2019 Daegu EXCO (Auditorium)
December 8, 2019
December 14, 2019 Daejeon Woosong University (Art Hall)
December 15, 2019
December 21, 2019 Gwangju Chosun University (Sunup Hall Auditorium)
December 22, 2019
December 28, 2019 Seoul Ewha Womans University (Grand Hall)
December 29, 2019

BOL4 (赤頬思春期) Live Tour 2020 "Love"

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Date[75] City Country Venue
January 16, 2020 Osaka Japan Zepp Namba
January 18, 2020 Tokyo Toyosu PIT

BOL4 Concert "Seoul" (2022)

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Date City Country Venue
May 14, 2022 Seoul South Korea Olympic Hall
May 15, 2022

2023 BOL4 Asia Tour "Love.zip"

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Date City Country Venue
2023 BOL4 Concert in Taipei
April 15, 2023 Taipei Taiwan TICC
BOL4 Concert "Love.zip"
April 29, 2023 Seoul South Korea Olympic Hall
April 30, 2023
2023 BOL4 Asia Tour "Love.zip"
August 19, 2023 Macau Broadway Theatre
August 31, 2023 Tokyo Japan Tachikawa Stage Garden
September 9, 2023 Jakarta Indonesia Balai Sarbini
September 10, 2023 Singapore The Theatre at Mediacorp
September 30, 2023 Taipei Taiwan TICC

Showcase

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  • BOL4 (赤頬思春期) 1st Live Showcase 宇宙をあげる～ (2018)[76]

Videography

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Music videos

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Year Title Album Director
2016 "Fight Day"
(싸운날) 		Red Ickle Zanybros
"Galaxy"
(우주를 줄게) 		Red Planet BTS Film
"Hard to Love"
(나만 안되는 연애) 		Zanybros
"Tell Me You Love Me"
(좋다고 말해) 		Non-album singles VFAR
2017 "We Loved"
(남이 될 수 있을까)
with 20 Years of Age 		BTS Film
"Blue" Red Diary Page.1 Aloha Man
"Imagine"
(상상)
"Some"
(썸 탈꺼야) 		Mustache Film
"Fix Me"
(고쳐주세요) 		Un­known
2018 "Travel"
(여행) 		Red Diary Page.2 Zanybros
"Starlight
(야경)
"Wind"
(바람사람)
2019 "Bom"
(나만, 봄) 		Puberty Book I Bom Un­known
"Stars Over Me"
(별 보러 갈래?) 		Kyle
"Galaxy"
(宇宙をあげる) 		Red Planet (Japan Edition) Un­known
"To My Youth"
(私の思春期へ) 		Non-album single SEP,inc.
"Workaholic"
(워커홀릭) 		Two Five Zanybros
"25"
2020 "Love" Non-album single
"Leo" feat. Baekhyun
(나비와 고양이) 		Puberty Book II Pum Un­known
"Hug"
(품)
"Red Lipstick"
(빨간 립스틱) 		Filmlet
"Dancing Cartoon" Zanybros
2021 "Butterfly Effect"
(나비효과) 		Butterfly Effect Un­known
"Space"
(너는 내 세상이었어)
2022 "Seoul" Seoul
2023 "Friend the End" Love.zip
"Snowball"
(스노우볼) 		Merry Go Round
"Eternal love"
(사랑할 수밖에)
2024 "Lips"
(featuring Giselle) 		Non-album singles
"Bloom" Novv Kim (Novv)

Filmography

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Television shows

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Year Title Network Role Notes/ Ref.
2014 Superstar K 6 Mnet Contestant [77]
2017 My Little Television MBC Cast On Episode 84 & 85[78]

Awards and nominations

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Main article: List of awards and nominations received by Bolbbalgan4

Notes

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  1. ^ Gaon Chart no longer releases download sales figures from January 2018 onwards.
  2. ^ In April 2018, Gaon Chart introduced music recording certifications for albums, downloads and streamings.
  3. ^ Includes the Billboard K-pop Hot 100 (discontinued since April 30, 2022), and the subsequent South Korea Songs chart (launched in May 7, 2022).
  4. ^ Hidden track from Red Planet album
  5. ^ "Travel" was certified 2× Platinum for surpassing 200 million streams in February 2023.[36]
  6. ^ "Travel" was certified Platinum for surpassing 2.5 million downloads in April 2019.[35]
  7. ^ "Bom" was certified platinum for 100 million streaming in June 11, 2020

References

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  1. ^ a b "BOL4 on Apple Music". iTunes. Retrieved 2018-05-29.
  2. ^ "볼빨간 사춘기', 슈스케6 출연 이후로 "영주 시장과 통화했다" (in Korean). Sisun News. 2016-09-21.
  3. ^ "'학사 경고 위기' 와 활동 전면 중단하고 '대학생'으로 돌아간 볼빨간사춘기" (in Korean). Insight. 2018-03-14.
  4. ^ "볼빨간사춘기, 6월 일본 정식 데뷔..'우주를 줄게' 日 버전 출시 [공식]" (in Korean). Daum. 2019-04-04.
  5. ^ "赤頬思春期、日本デビューALより『宇宙をあげる』MVフルバージョンが公開" (in Japanese). Dwango News. 2019-05-22. Archived from the original on 2019-05-29. Retrieved 2019-05-29.
  6. ^ a b "韓国シティポップの大本命・赤頬思春期、「宇宙をあげる」MV公開＆先行配信スタート" (in Japanese). Billboard Japan. 2019-05-22.
  7. ^ "韓国のストリーミング女王・赤頬思春期、サマソニ出演" (in Japanese). Oricon News. 2019-05-23.
  8. ^ "[전문] 볼빨간 사춘기 측 "지윤 탈퇴→1인 체제로 5월 새앨범 발표" (공식입장)" (in Korean). Sports DongA. 2020-04-02.
  9. ^ "올드스쿨' 볼빨간 사춘기 "음원차트 역주행 신기해" 발랄 입담 '눈길" (in Korean). ENews24. 2016-09-21. Archived from the original on October 26, 2016.
  10. ^ "안지영" (in Korean). Naver.
  11. ^ "볼빨간사춘기 프로필" (in Korean). Naver.
  12. ^ "우지윤" (in Korean). Naver.
  13. ^ Gaon Album Chart:
  14. ^ Cumulative sales of Red Planet:
  15. ^ Circle (formerly Gaon) Album Chart:
  16. ^ "BOL4 - Oricon Albums Chart" (in Japanese). Oricon Chart. Retrieved 2019-06-12.
  17. ^ Billboard Japan Hot Albums:
  18. ^ Billboard World Albums:
  19. ^ "2016년 10월 Album Chart".
  20. ^ Cumulative sales of Red Diary Page.1:
  21. ^ "2018년 06월 Album Chart".
  22. ^ "2019년 04월 Album Chart".
  23. ^ "2019년 09월 Album Chart".
  24. ^ "2020년 05월 Album Chart".
  25. ^ "Circle Album Chart – Week 16, 2023". Circle Chart (in Korean). Retrieved April 27, 2023.
  26. ^ "Circle Album Chart – December, 2023". Circle Chart (in Korean). Archived from the original on January 11, 2024. Retrieved January 15, 2024.
  27. ^ "週間 アルバムランキング (2019年06月17日付)" (in Japanese). Oricon. Archived from the original on 2019-06-16.
  28. ^ Circle (formerly Gaon) Digital Chart:
  29. ^ Peak chart positions on Billboard's K-pop Hot 100 and South Korea Songs:
  30. ^ "BOL4 - Oricon Singles Chart" (in Japanese). Oricon Chart. Retrieved 2020-01-22.
  31. ^ "2016년 36주차 Download Chart".
  32. ^ Cumulative sales of "Let the Universe":
  33. ^ a b c d C., Daniel (September 12, 2018). "Gaon's 관찰노트" [Gaon's Observation Notes] (in Korean). Gaon Music Chart. Archived from the original on September 13, 2018. Retrieved September 12, 2018.
  34. ^ C., Daniel (May 3, 2019). "Gaon's 관찰노트" [Gaon's Observation Notes] (in Korean). Gaon Music Chart. Archived from the original on October 28, 2019. Retrieved May 10, 2019.
  35. ^ a b "Gaon Certification - Downloads" (in Korean). Gaon Music Chart. Retrieved April 11, 2019.
  36. ^ "South Korean single streaming certifications – Bolbbalgan4 – Travel" (in Korean). Korea Music Content Association (KMCA). Retrieved February 9, 2023.
  37. ^ "가온 인증(Gaon Certification) - Streaming". Gaon Music Chart (in Korean). Retrieved June 12, 2020.
  38. ^ "週間 シングルランキング (2020年01月27日付)" (in Japanese). Oricon. Archived from the original on 2020-01-22.
  39. ^ Gaon Digital Chart:
  40. ^ Kpop Hot 100:
    • The Kpop Hot 100 was discontinued beginning with the July 16, 2014 issue date. On the issue dated May 29 – June 4, 2017, the chart was re-established.
    • "We Loved". July 10, 2017. Archived from the original on June 14, 2018. Retrieved April 12, 2019.
    • "#First Love". January 22, 2018. Archived from the original on May 28, 2020. Retrieved April 12, 2019.
  41. ^ Gaon Digital Chart:
  42. ^ Kpop Hot 100:
    • The Kpop Hot 100 was discontinued beginning with the July 16, 2014 issue date. On the issue dated May 29 – June 4, 2017, the chart was re-established.
    • "Lost Without You, Mohae". June 5, 2017. Archived from the original on July 8, 2019. Retrieved April 12, 2019.
  43. ^ a b "2017년 Download Chart".
  44. ^ Cumulative sales of "Mohae":
  45. ^ Gaon Digital Chart:
  46. ^ Kpop Hot 100:
  47. ^ "2014년 12월 Download Chart".
  48. ^ Cumulative sales of "Dream":
  49. ^ C., Daniel (June 21, 2019). "Gaon's 관찰노트" [Gaon's Observation Notes] (in Korean). Gaon Music Chart. Archived from the original on October 28, 2019. Retrieved June 21, 2019.
  50. ^ Gaon Digital Chart:
  51. ^ Kpop Hot 100:
  52. ^ Cumulative sales of "Grumpy":
  53. ^ Cumulative sales of "You (=I))":
  54. ^ "2016년 09월 Download Chart".
  55. ^ Cumulative sales of "Grumpy":
  56. ^ Cumulative sales of "Fix Me":
  57. ^ Cumulative sales of "Imagine":
  58. ^ "'음원 대세' 볼빨간사춘기 단독 콘서트, 오픈 동시 매진" (in Korean). Newsen. 2016-11-11.
  59. ^ "볼빨간사춘기, 첫 해외콘서트 티켓 2분만에 매진...예매 추가 오픈" (in Korean). Naver. 2017-07-27.
  60. ^ "볼빨간사춘기, 대만 콘서트 대성황...2천3백석 매진" (in Korean). Naver. 2017-09-12.
  61. ^ "'역주행의 아이콘' 볼빨간사춘기의 서울 단독콘서트 #전석매진" (in Korean). Naver. 2017-11-02.
  62. ^ "볼빨간사춘기 단독콘서트 현장, '시차'부터 '가시나'까지 커버" (in Korean). Newsen. 2018-01-02.
  63. ^ "볼빨간사춘기, 대만 이어 홍콩까지 홀렸다 '단독콘서트 성공'" (in Korean). Newsen. 2018-02-05.
  64. ^ "閨蜜夏日出遊的旋律！韓國創作女團「臉紅的思春期」6月底來台開唱，制霸1位的新歌你聽過了嗎？" (in Chinese). Marie Claire Taiwan. 2018-06-27.
  65. ^ "볼빨간사춘기, 두 번째 대만 단독 콘서트 'Travel Together' 개최" (in Korean). Naver. 2018-06-27.
  66. ^ "볼빨간사춘기, 대만 콘서트 'Travel Together' 성료!" (in Korean). Naver. 2018-07-04.
  67. ^ "볼빨간사춘기, 세 번째 단독 콘서트 개최···28일 티켓 오픈" (in Korean). Naver. 2018-05-18.
  68. ^ "볼빨간사춘기, 단독콘서트 '여행' 6천석 매진" (in Korean). Naver. 2018-05-29.
  69. ^ "赤頬思春期、8月10日東京にて日本1stコンサート開催決定！" (in Japanese). Kstyle. 2018-07-04.
  70. ^ "볼빨간사춘기, 첫 번째 日 단독 콘서트...2천 5백석 규모 [공식]" (in Korean). Naver. 2018-08-08.
  71. ^ "볼빨간사춘기, 4월 신곡 발표→5월 단독콘서트 '열일 행보'" (in Korean). Naver. 2019-03-23.
  72. ^ "볼빨간사춘기, 봄 콘서트 '꽃기운' 1분만에 매진" (in Korean). Naver. 2019-04-05.
  73. ^ "볼빨간사춘기, 일본-홍콩-태국-대만 亞투어 돌입 '국내 열기 잇는다'" (in Korean). Naver. 2019-05-23.
  74. ^ "볼빨간사춘기, 첫 전국투어 콘서트 'Two Five'" (in Korean). Naver. 2019-10-25. Archived from the original on 2019-12-07. Retrieved 2019-12-07.
  75. ^ "赤頬思春期(BOL4) JAPAN LIVE TOUR 2020 ～LOVE～ ローソンチケットプレリクエスト2次先行受付スタート！" (in Japanese). BOL4 Japan Official. 2019-11-14.
  76. ^ "赤頬思春期、2月に日本初ライブショーケース開催決定！" (in Japanese). Kstyle. 2018-01-08.
  77. ^ "'슈퍼스타K6' 볼빨간 사춘기, 경북 영주 출신 실력파...이승철 "기특하다"" (in Korean). EToday. 2014-08-29.
  78. ^ "볼빨간사춘기 표 '모닝콜' 대공개! | MBC 연예 스포츠" (in Korean). Enews IMBC. 2017-02-03.
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