Jaehyo

Jaehyo
Born
Ahn Jae-hyo

(1990-12-23) December 23, 1990 (age 35)
Busan, South Korea
Occupations
  • Singer
  • actor
Years active2011–present
Labels
Member ofBlock B
Korean name
Hangul
안재효
RRAn Jaehyo
MRAn Chaehyo

Ahn Jae-hyo (Korean: 안재효; born December 23, 1990), known mononymously as Jaehyo (재효), is a South Korean singer and actor. He debuted as a vocalist of the South Korean boy band Block B in April 2011 with the group's first single album, Do U Wanna B?.[1][2] Outside the group's activities, he has starred in the web series What on Earth Is Going On? (2015) and appeared in the musicals Run to You: Street Life (2015) and In the Heights (2016–2017).[3]

Early life and education

Ahn Jae-hyo was born on December 23, 1990, in Busan, South Korea. He has an older brother.[4] In 2013, Ahn enrolled in the Department of Broadcasting and Entertainment at Global Cyber University.[5]

Career

Pre-debut

Before his debut, Ahn worked as a fitting model.[4] He was also known as a Busan ulzzang and appeared on the Mnet program Chiyok! Kkonminam Arongsatae (치욕! 꽃미남 아롱사태).[6][7]

Ahn later trained under Cube Entertainment in preparation for the debut of Beast.[7] An injury sustained during choreography practice required knee surgery, after which he returned home and abandoned his plans to become a singer. At the urging of Lee Joon of MBLAQ, he resumed pursuing a music career as a Block B trainee.[8]

2011–present: Block B and individual activities

Main article: Block B

Jaehyo debuted as a member of Block B in April 2011 with the single album Do U Wanna B?.[9][10] In October 2012, he made a cameo appearance in the MBC fantasy sitcom The Thousandth Man.[11]

In June 2015, he and fellow Block B member U-Kwon joined the cast of a Japanese production of the musical Run to You, staged in Tokyo.[12] Later that year, he was cast in his first leading role in the web drama Dodaeche Museun Iriya (도대체 무슨 일이야).[13] In December 2016, he was cast as Benny in the South Korean production of In the Heights.[14]

In January 2018, Block B released the reissue Re:Montage, which included Jaehyo's first solo track, "At Last" (마지막 정류장), a Korean-language solo version of "Bus Stop", his 2017 collaboration with Naoko Tanaka.[15][16]

2023–present: Departure from Seven Seasons and later activities

On January 4, 2023, Seven Seasons announced that its exclusive contracts with Jaehyo, B-Bomb, and U-Kwon had ended and would not be renewed.[1] In September 2024, Jaehyo reunited with the other members of Block B for the group's first full-group performance in seven years on The Seasons: Zico's Artist.[17]

In February 2026, he appeared in the short-form fantasy action series Haunted Blade: Hunters (혼검: 헌터스), playing a mysterious watcher possessed by a Joseon-era warrior.[18][19]

Personal life

Health

Jaehyo underwent knee surgery in 2015. After Block B's concerts in January 2018, he said that performances continued to cause knee pain and fluid buildup.[20]

Military service

On December 4, 2018, Seven Seasons announced that Jaehyo would enter a recruit training center on December 20 to begin his mandatory military service. Following his 4 weeks of basic training, he was expected to serve as a social service worker for approximately two years.[21] On the day he entered the training center, Jaehyo posted a handwritten letter to Block B's official fan cafe. He expressed regret that his knee condition prevented him from serving on active duty.[22]

On December 6, 2019, Seven Seasons announced that Jaehyo had been reclassified from Grade 4 to Grade 5. His initial Grade 4 classification, which assigned him to alternative service as a social service worker, was based on chronic injuries affecting his right knee joint, including the lateral femoral cartilage and partial lateral meniscus tear.

During the 3rd week of the basic training he began in December 2018, his condition recurred and he was sent home for treatment. He re-entered basic training on March 21, 2019, but was sent home again that same day after his symptoms returned. After six months of rest and treatment under his physician's supervision, he underwent a medical re-examination at the Busan regional office of the Military Manpower Administration on September 30 and a detailed examination at its Daegu–Gyeongbuk regional office on November 4, which resulted in his Grade 5 classification. This placed him in wartime labor service, exempting him from mandatory service during peacetime but leaving him subject to mobilization during wartime or an equivalent national emergency.[23]

Discography

See also: Block B discography
Solo songs
Title Year Album Ref.
"Bus Stop" (featuring Naoko Tanaka) 2017 Project-1 EP <Type-Red> / <Type-Blue> [16]
"At Last" (마지막 정류장) 2018 Re:Montage [24][25]

Filmography

Acting credits
Year Title Role Network or platform Ref.
2012 The Thousandth Man Cameo MBC [11]
2015 Dodaeche Museun Iriya (도대체 무슨 일이야) Il-woo Daum tvPot
KakaoTV 		[26]
2026 Haunted Blade: Hunters (혼검: 헌터스) Yoon Ji-hyun Shortime [18][27]

References

  1. ^ a b Yoon, So-yeon (January 4, 2023). "Block B members Jaehyo, B-Bomb and U-Kwon to leave agency". Korea JoongAng Daily.
  2. ^ "Do U Wanna B?". Bugs! (in Korean). April 14, 2011.
  3. ^ Son, Ye-ji (December 17, 2016). [10덕 포인트] 블락비의 유일무이, 재효를 만나다. TenAsia (in Korean).
  4. ^ a b Lee, Ga-on (August 16, 2011). 블락비│My name is 재효, 유권, 비범, 피오. TenAsia (in Korean).
  5. ^ Lee, Kyung-jin (March 4, 2013). “이제는 대학생!” 개강 맞이한 13학번 ★들. Maeil Business Newspaper (in Korean).
  6. ^ Yu, Eun-young (April 19, 2016). [화보] 블락비 재효, '부산 얼짱'의 숨겨진 명품 복근. Busan Ilbo (in Korean).
  7. ^ a b Jo, Myeong-hyeon (August 22, 2014). [HD인터뷰] 블락비 재효 "비스트 선배님과 경쟁? 추격하는 중". The Star (in Korean).
  8. ^ Kim, Eun-gu (April 14, 2011). 조PD가 만든 블락비, 비스트 연습생 출신 멤버 포함 '눈길'. E-Daily (in Korean).
  9. ^ Hwang, Mi-hyun (April 15, 2021). 블락비, 오늘 데뷔 10주년 "가슴 벅차…친구같은 아티스트될 것". News1 (in Korean).
  10. ^ 블락비, 전 소속사와 전속계약 분쟁 합의…활동 재개. Yonhap News Agency (in Korean). August 29, 2013.
  11. ^ a b Kang, Kyung-yoon (October 5, 2012). '컴백' 블락비 재효, '천번째 남자' 카메오 출연 결정. SBS Entertainment News (in Korean).
  12. ^ 블락비 재효-유권, 뮤지컬 '런 투 유' 출연 확정. News1 (in Korean). June 25, 2015.
  13. ^ Jang, Seo-yoon (July 7, 2015). [단독]블락비 재효, 첫 드라마 도전 '도대체 무슨 일이야' 남자주인공 발탁. TenAsia (in Korean) – via Daum.
  14. ^ Lee, Ji-eun (December 15, 2016). [스타톡] '인 더 하이츠' 유권·재효 "블락비 때와 전혀 다른 매력 기대하세요". NewsPim (in Korean).
  15. ^ Park, Seul-gi (January 9, 2018). 블락비 재효 "'마지막 정류장', 의미있는 첫 솔로곡". TenAsia (in Korean).
  16. ^ a b "PROJECT-1 EP ＜TYPE-RED＞". Block B Japan official website (in Japanese). September 20, 2017. Retrieved August 15, 2026.
  17. ^ Yoon, Hyo-jeong (September 6, 2024). '지코의 아티스트' 마지막은 블락비…7년만의 완전체 무대. News1 (in Korean).
  18. ^ a b Gong, Young-joo (October 30, 2025). '혼검:헌터스', iKON 김진환 주연, 안재모·블락비 재효 등 라인업 완성. YTN (in Korean).
  19. ^ Heo, Hwan (February 27, 2026). 아이윌미디어 '혼검:헌터스' 日 플랫폼서 인기…글로벌 존재감 입증. YTN (in Korean).
  20. ^ Lee, Ji-eun (December 4, 2018). 블락비 재효, 20일 입소…"건강상의 이유로 사회복무요원으로 대체 복무"(공식입장). NewsPim (in Korean).
  21. ^ Kang, Nae-ri (December 4, 2018). 블락비 측 "재효, 20일 입소…건강상 이유로 대체복무". YTN (in Korean).
  22. ^ Lee, Ji-eun (December 21, 2018). 블락비 재효, 군 입대 전 손편지로 인사…"현역 복무 못해 죄송한 마음". NewsPim (in Korean).
  23. ^ Lee, Jae-hoon (December 6, 2019). 블락비 재효, 5급 병역 처분···"재입대, 병증으로 귀가조치". Newsis (in Korean).
  24. ^ Herman, Tamar (January 8, 2018). "Block B Delivers Mellow New Single 'Don't Leave'". Billboard.
  25. ^ 마지막 정류장 (재효 Solo). Bugs! (in Korean). Retrieved August 15, 2026.
  26. ^ Jang, Gyeong-guk (September 14, 2015). '블락비' 재효, 웹 드라마 티저 공개…생애 첫 연기 도전. Sports Donga (in Korean).
  27. ^ 쇼타임 오픈! – 혼검:헌터스. Instagram (in Korean). Shortime. Retrieved August 15, 2026.
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