ArtistOui Entertainment
Jang Dae-hyeon
Jang Dae-hyeon (장대현), born February 11, 1997, in Mapo District, Seoul, is a South Korean rapper, singer, and songwriter. He first appeared before a national audience as a contestant on Mnet survival show Produce 101 Season 2 in 2017, finishing 83rd but earning enough recognition to debut with project group Rainz later that year. After Rainz disbanded in 2018, he signed with Oui Entertainment and built a solo foundation before becoming a founding member of WEi at the group's debut on October 5, 2020. Within WEi, Daehyeon serves as leader and primary lyricist. His songwriting credit on the group's 2026 anniversary single "Save" confirms a role that goes beyond performance: he co-wrote and co-composed the track alongside producers RYVNG, Oh Hyung-seok, and Maynine of Stupid Squad. WEi built a substantial discography across six Korean EPs -- from Identity: First Sight (2020) through Wonderland (2025) -- and two Japanese EPs, with Daehyeon co-writing rap lyrics across the catalogue. On March 25, 2026, Oui Entertainment announced an indefinite group hiatus as members transitioned to individual activities, with Daehyeon's military enlistment among the key factors. His Instagram handle @j.dh0423 holds an engaged following built through transparent, direct communication with fans.
1 articles9 creditsDebut: April 7, 2017South Korean
Gallery
Discography
2026
SaveSingle
2025
WonderlandEP
2025
The FeelingsEP
2023
Love Pt. 3: EternallyEP
2022
Love Pt. 2: PassionEP
2022
Love Pt. 1: First LoveEP
2021
Identity: ActionEP
2021
Identity: ChallengeEP
2020
Identity: First SightEP
Fans Also Ask
Is Jang Dae-hyeon the leader of WEi?
Yes. Jang Dae-hyeon is the leader and primary lyricist of WEi, the six-member boy group under Oui Entertainment. He debuted with WEi on October 5, 2020, and has co-written and co-composed multiple tracks across the group's discography, including their 2026 anniversary single 'Save'.
What group was Jang Dae-hyeon in before WEi?
Before WEi, Jang Dae-hyeon competed on Produce 101 Season 2 (2017) and debuted with project boy group Rainz. Rainz was active from September 2017 until its disbandment in early 2018. He then signed with Oui Entertainment and prepared for WEi's debut in 2020.
When is Jang Dae-hyeon enlisting in the military?
Jang Dae-hyeon's military enlistment was announced in September 2024 and postponed after a physical examination in October 2024. In March 2026, Oui Entertainment confirmed WEi would enter an indefinite hiatus as members transitioned to individual activities, with Daehyeon's military service a key factor.
What is WEi's full discography?
WEi released nine Korean EPs from Identity: First Sight (2020) through Wonderland (2025), plus two Japanese EPs and the 2026 anniversary single 'Save'. Their catalogue spans the Identity series (2020-2021), the Love series (2022-2023), and the comeback releases The Feelings and Wonderland (both 2025).
Did Jang Dae-hyeon write songs for WEi?
Yes. Jang Dae-hyeon is WEi's primary lyricist and holds co-writing credits across the group's discography. He co-composed 'All or Nothing' from Identity: Challenge (2021) and contributed rap lyrics on multiple EPs. On the 2026 anniversary single 'Save,' he received formal co-writer and co-composer credits.
