1the9

1the9
1the9 in April 2019 From left to right: Yechan, Sungwon, Junseo, Doyum, Taewoo, Taekhyeon, Jinsung, Seunghwan, and Yongha.
1the9 in April 2019
From left to right: Yechan, Sungwon, Junseo, Doyum, Taewoo, Taekhyeon, Jinsung, Seunghwan, and Yongha.
Background information
OriginSeoul, South Korea
GenresK-pop
Years active2019–2020
LabelsPocketDol Studio
Past members
  • Yoo Yong-ha
  • Kim Tae-woo
  • Lee Seung-hwan
  • Shin Ye-chan
  • Kim Jun-seo
  • Jeon Do-yum
  • Jung Jin-sung
  • Jeong Taek-hyeon
  • Park Sung-won

1the9 (Hangul: 원더나인, stylized as 1THE9, pronounced as Wonder Nine) was a South Korean boy band formed through the 2018 survival competition Under Nineteen. The group was composed of 9 members: Yoo Yong-ha, Kim Tae-woo, Lee Seung-hwan, Shin Ye-chan, Kim Jun-seo, Jeon Do-yum, Jung Jin-sung, Jeong Taek-hyeon and Park Sung-won.[1] The group's debuting members were announced on February 9, 2019 and was initially slated to be promoting under PocketDol Studio for 12 months.[2] After delays surrounding the COVID-19 pandemic, the group disbanded in August 2020.

  1. ^ ""4월 정식 데뷔"..'언더나인틴', 1위 센터 전도염x그룹명은 원더나인 [어저께TV]". news.chosun.com (in Korean). 2019-02-09. Archived from the original on 2019-02-14. Retrieved 2019-02-13.
  2. ^ Kim, Hyun-sik (February 9, 2019). "'언더나인틴' 종영, 9인조 보이그룹 '원더나인' 탄생". No Cut News (in Korean). Archived from the original on February 13, 2019. Retrieved November 18, 2023.