Jung Yoon-hak

2.1. Birth and Education

Jung Yoon-hak was born on December 2, 1982, in South Korea, with his birth name being 정윤학_{Jung Yoon-hak}^Korean. He pursued his higher education at Kyung Hee University in Seoul, South Korea. He also received a scholarship to study at Aichi University in Nagoya, Japan, where he majored in Modern Chinese Studies. His interest in Japanese culture, particularly Japanese films and anime, played a significant role in his decision to study in Japan, a choice influenced by a partnership between his South Korean high school and Aichi University. During his time at Aichi University, he resided in Hara, Tenpaku-ku, Nagoya, and commuted to the university's Nagoya campus from Kurosasa Station.

2.2. Pre-debut Activities

Before his official debut as a singer, Jung Yoon-hak engaged in several activities within the Japanese entertainment scene. He worked as a VJ (Video Jockey) and also debuted as a model in Japan. His entry into the modeling world occurred when he was scouted while working part-time at a Chinese restaurant in Nagoya. This exposure eventually led to a significant turning point: a South Korean entertainment agency president, who was visiting Japan at the time, noticed him during a television appearance. Subsequently, Jung Yoon-hak was invited to join the "Choshinsung" project, which prompted his return to South Korea to embark on his career as a singer.

2.3. Group Debut and Activities

In 2007, Jung Yoon-hak officially debuted as a member of the dance music group Choshinsung, which later became known as Supernova. Within the group, he holds the crucial roles of leader and sub-vocalist, guiding the group's activities and performances. Owing to his fluency in Japanese, acquired during his studies and early career in Japan, Jung Yoon-hak often served as an interpreter for his fellow members, particularly during Supernova's promotional activities and debut in Japan, facilitating communication and smooth operations in the Japanese market.

3.1. Military Service

As a South Korean citizen, Jung Yoon-hak fulfilled his mandatory military service obligation. He enlisted as an active-duty soldier in the South Korean Army on October 25, 2011. After serving for approximately 20 months, he was honorably discharged on July 24, 2013, from the 3rd ROK Army Command in Yongin, Gyeonggi Province.

3.2. COVID-19 Infection and Recovery

In 2020, Jung Yoon-hak became the first South Korean celebrity to publicly test positive for COVID-19. He was diagnosed on April 1, 2020, with the news being publicly revealed on April 3. He began exhibiting symptoms three days after his return to South Korea from Japan. Upon diagnosis, he was immediately quarantined and admitted for treatment at a hospital in Seoul. During his treatment, he was initially classified as a "severe patient" by the medical authorities. However, he made a full recovery and was discharged from the hospital on May 15, 2020, allowing him to resume his professional projects.

3.3. Personal Attributes and Anecdotes

Jung Yoon-hak possesses a range of personal attributes and has been the subject of several notable anecdotes throughout his career. He stands at 71 in ^{(181 cm)} tall and weighs 143 lb ^{(65 kg)}, with a blood type of O. His nicknames include "Yoonhak-kun" and "Grandpa," reflecting aspects of his personality perceived by those around him. He is an only child. His hobbies are diverse, encompassing basketball, weight training, driving, watching movies and DVDs, snowboarding, and collecting caps. He is also noted for his special skills in foreign languages, particularly Japanese, as well as singing, dancing, and basketball.

Regarding his personal tastes, Jung Yoon-hak enjoys various foods, including Hitsumabushi, umeboshi, and mentaiko. His ideal type of woman is described as someone with an intellectual aura and who wears white skinny jeans. Within his group, Supernova, he is often seen as a "mother figure" by the members. He once shared a room with fellow member Sungmo, who reportedly looked up to him significantly. An interesting anecdote from Gwangsu, another Supernova member, is that he initially thought Jung Yoon-hak's profile resembled that of actor Lee Joon-gi when they first met. Jung Yoon-hak has also mentioned that he frequently listens to the song "My Gift to You" by CHEMISTRY.

4.1. Television Series

Jung Yoon-hak has appeared in several television dramas in both South Korea and Japan:

• 2011: Sign as a member of the boy band "VOICE"
• 2011: Koisuru Kimchi (恋するキムチ_{Love Kimchi}^Japanese) as Lee Won-joon (aired on NHK Gifu)
• 2015: My Unfortunate Boyfriend as Kang Hee Chul
• 2017: Masuyama Chounouryokushi Jimusho (増山超能力師事務所^Japanese) as Yoon Ji-hoon (aired on Yomiuri TV)
• 2017: Bouncer as Hachiro Shinya (starring role, aired on BS Skyper!)
• 2018-2019: Fates & Furies as Kang Eui Gun
• 2023: Flaglia as Yuku

4.2. Film

His filmography includes:

• 2010: Kimi ni Love Song o (君にラヴソングを_{A Love Song For You}^Japanese) as Yoonhak
• 2011: Our After School (僕たちのアフタースクール^Japanese) as Yoonhak
• 2014: Fig Forest (無花果の森_{Ichijiku no Mori}^Japanese) as Kim Yeong-ho
• 2014: The End of the World (세상의 끝^Korean) as Dong-gwon

4.3. Theater

Jung Yoon-hak has also taken to the stage in various theatrical productions, including musicals and plays:

• 2011: Musical Finding Kim Jong-wook (김종욱 찾기^Korean)
• 2013: Anata no Hatsukoi Sagashimasu (あなたの初恋探します_{Finding Your First Love}^Japanese) as Kim Jong-wook (performed November 13-30 at Amuse Musical Theater)
• 2014-2015: ON AIR ~Yakan Hikou~ (ON AIR～夜間飛行～_{Night Flight}^Japanese) as Jay (performed June 5-9, 2014, at Gotanda Yu-Port and February 5-12, 2015, at Zepp Blue Theater Roppongi)
• 2015, 2017: Musical RENT as Roger (performed September 8 - October 9, 2015, at Theater Creation; July-August 2017 at Theater Creation, Aichi Prefectural Art Theater Grand Hall, Morinomiya Piloti Hall, and Fukuoka Civic Hall Grand Hall)
• 2015: Musical HARU ~Ano Hi ni Modoreru Nara~ (HARU～あの日に戻れるなら～_{If I Could Go Back to That Day}^Japanese) as Han Min-ho (performed in December at Meijiza)
• 2016-2017: Musical INTERVIEW ~Onegai, Dareka Boku o Tasukete~ (INTERVIEW～お願い、誰か僕を助けて～_{Please, Someone Help Me}^Japanese) as Sinclair (performed in September 2016 at Kyoto Theater and March 2017 at Zepp Blue Theater Roppongi)
• 2016, 2019: Musical Priscilla as Adam (Felicia) (performed in December 2016 and March 2019 at Nissay Theatre)
• 2017: Musical Hana Gubi Jin (花・虞美人_{Flower and Yu Meiren}^Japanese) as Liu Bang (performed March-April 2017 at Akasaka ACT Theater, Aichi Prefectural Art Theater Grand Hall, and Morinomiya Piloti Hall)
• 2020: Musical Every Moment Was You (すべての瞬間は君だった^Japanese) as Louis (Season 1, performed January-February at NAMIKIRI HALL and Nakano ZERO); and as Rowoon (Season 2 ~Spring~, scheduled for April at TOWER HALL FUNABOR, but canceled due to COVID-19 visa restrictions and venue guidelines)
• 2022: Play Confession of Murder (살인의 고백^Korean) as Choi Hyung Goo (performed in June at Sunshine Theater)

5.1. Hosting

Jung Yoon-hak has taken on hosting duties for various broadcast programs.

• 2020: G-EGG as a Main Host

5.2. Variety Shows

He has also appeared as a guest or regular cast member on entertainment and talk shows.

• 2011: Dora Croa (ドラクロワ^Japanese) as a guest

5.3. Producer Activities

Jung Yoon-hak has extended his involvement in the broadcast industry to include production roles.

• 2020: G-EGG as a producer for the Japan-Korea idol audition program.

6.1. Group Discography

Jung Yoon-hak's primary musical activities have been as a member of the group Supernova (formerly Choshinsung). For a detailed list of the group's releases and discography, refer to the main article on Supernova.

6.2. Solo Discography

In addition to his group activities, Jung Yoon-hak has released several solo musical works, including singles and albums.

6.3. Music Video Appearances

Jung Yoon-hak has appeared in music videos for other artists:

• 2007: FTISLAND - "I'm Happy" (행복합니다^Korean)
• 2007: SeeYa - "Let's Get Married" (결혼할까요^Korean)
• SeeYa - "Shoes 2" (구두2^Korean)
• 2011: AZU - "Promise in a kiss feat. Yoonhak from Choshinsung"

6.4. Song Tie-ups

Jung Yoon-hak's solo songs have been featured as tie-ins for various media:

• "Eternal Star ~Kimi no Tame ni~" (Eternal Star ~君のために~_{For You}^Japanese) served as the Japanese theme song for the 2015 film Macbeth.
• "Do Your Own Thing feat. Shingo Fujimori" was used as the ending theme for Yomiuri TV and Nippon TV's variety show Downtown DX during January and February 2018.