1the9 (Hangul: 원더나인, stylized as 1THE9, pronounced as Wonder Nine) is a South Korean boy group formed through the 2018 survival show UNDER NINETEEN. The group is 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. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.