Who am I ?
Born | Jeong Jae-hyun February 14, 1997 (age 25) Seocho District, Seoul, South Korea |
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Other names | Jeong Yun-o |
Education | School of Performing Arts Seoul |
Occupation |
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Musical career | |
Genres | |
Instrument(s) | Vocals |
Years active | 2013–present |
Labels | |
Member of | |
Formerly of | SM Rookies |


mY Journey
2016-2018: Debut with NCT
In April 2016, Jaehyun officially debuted as a member of the first NCT’s sub-unit, NCT U, with the singles “The 7th Sense” and “Without You“. On July 10, he made his debut as a member of NCT 127 with their first EP, NCT#127. In March 2017, Jaehyun joined the radio show NCT Night Night as a DJ alongside fellow member Johnny. In November 2017, Jaehyun and Dear released the song “Try Again” for the project SM Station. In December, he was featured in the music video for Wendy and Baek A-yeon‘s “The Little Match Girl”. In January 2018, Jaehyun released the single “Timeless” alongside a new NCT U lineup as part of the SM Station project.
2019–present: Solo endeavors and acting debut
In October 2019, Jaehyun became one of three hosts for the South Korean music program Inkigayo alongside Minhyuk and Naeun, hosting the show every Sunday. On September 4, 2020, it was confirmed that Jaehyun would make his acting debut in the KBS2 drama Dear. M, which was to be released in 2021, in the role of Cha Min-ho, a second year student in the Computer Science Department at Seoyeon University. The drama was postponed indefinitely for airing after the lead actress, Park Hye-su, was accused of school bullying. After nearly two years of delay, the first six episodes of Dear. Mwas released globally on June 29, 2022 through the streaming service Viki. Its following episodes were released on July 6, 2022.
On November 2, 2021, Jaehyun was confirmed to star in a KakaoTV web series, a remake of the 2001 South Korean film Bungee Jumping of Their Own, playing the leading role of Im Hyun-bin. On December 9 of the same year, during pre-production, KakaoTV announced the cancellation of the project due to concerns with the LGBT plot from the original film’s screenwriter.On August 18, Jaehyun released his first single “Forever Only” as part of NCT Lab. “Forever Only” is described as an R&B song featuring lyrics written by Jaehyun.

