ArtistOui Entertainment
Yoo Yong-ha
Yoo Yong-ha (유용하), born January 11, 1999, in Hwasun County, South Jeolla Province, is a South Korean singer who first gained national attention on MBC's Under Nineteen survival program in 2018. He ranked high enough to debut with the show's official project group 1the9, a nine-member act that released music from March 2019 to October 2019 before the members dispersed across various agencies. Yongha joined Oui Entertainment and became a founding member of WEi when they debuted on October 5, 2020 with their debut EP Identity: First Sight. Known for a clear, emotive vocal tone and polished stage presence, he has been a consistent contributor across all of WEi's eight Korean EPs. Alongside fellow former 1the9 member Kim Jun-seo, he carries the group's strongest connection to the Under Nineteen generation of idol trainees. His Instagram @yoo_yongha reflects a casual, close communication style with the group's fanbase, RUi.
1 articles4 creditsDebut: March 27, 2019South Korean
Gallery
Discography
2026
SaveSingle
2025
WonderlandEP
2025
The FeelingsEP
2020
Identity: First SightEP
Fans Also Ask
What was Yoo Yong-ha in before WEi?
Yoo Yong-ha was a member of 1the9, a project group formed from contestants on MBC's Under Nineteen survival show in 2018. 1the9 was active from March to October 2019. He then joined Oui Entertainment and became a founding member of WEi in October 2020.
What is Yoo Yong-ha's role in WEi?
Yoo Yong-ha is a main vocalist in WEi. He has contributed vocals across all eight of the group's Korean EPs and the 2026 anniversary single Save. He is known for his clear, expressive vocal delivery in the group's R&B-influenced pop tracks.
How many members were in 1the9?
1the9 was a nine-member project group formed from MBC's Under Nineteen reality program. The group was active from March 2019 to October 2019. Both Yoo Yong-ha and fellow WEi member Kim Jun-seo were part of 1the9.
What is WEi's official fandom name?
WEi's official fanbase is called RUi (루아이). The name blends the group's name WEi with the Korean consonant R, symbolizing the close connection between the artists and their fans. RUi members are known for their passionate support across WEi's domestic and international activities.
What is Yoo Yong-ha's birthdate and hometown?
Yoo Yong-ha was born on January 11, 1999, in Hwasun County, South Jeolla Province, South Korea. He is one of the founding members of WEi under Oui Entertainment, joining the group directly after his time with 1the9.
