# 1the9

> Mediated Wiki article. Canonical URL: https://mediated.wiki/source/1the9
> Markdown URL: https://mediated.wiki/source/1the9.md
> Source: https://en.wikipedia.org/wiki/1the9
> Source revision: 1349703486
> License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/)

**1the9** (Korean: 원더나인, stylized as **1THE9**, pronounced as "Wonder Nine") was a South Korean [boy band](/source/Boy_band) formed through the 2018 survival competition *[Under Nineteen](/source/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](/source/MBK_Entertainment) for 12 months.[2] After delays surrounding the [COVID-19 pandemic](/source/COVID-19_pandemic), the group disbanded in August 2020.

## History

### Pre-debut: *Under Nineteen*

Main article: [Under Nineteen](/source/Under_Nineteen)

1THE9 was formed through the 'survival' competition series *Under Nineteen*, which aired on [MBC](/source/Munhwa_Broadcasting_Corporation) from November 3, 2018 until February 9, 2019. Out of an initial 57 trainees participating, the final 9 were chosen by the audience voting and announced via live television broadcast.

During the final broadcast the final members were ranked and marked to debut by votes from the fans. It was announced that the final lineup would do a [V Live](/source/V_Live_(website)) to thank the fans two hours after the show as well as their name.[3][4] It was later announced that vocal team director [Crush](/source/Crush_(singer)) would be writing and producing the groups debuting single.[5]

Although their official debut is scheduled for April, they will be participating in "Under Nineteen's Final Concert" on February 23, 2019 performing songs from the show with the other contestants.[6] Since the show, the members have performed the single "Like a Magic" on music shows and has used it as a pre-debut promotion single.[7]

### 2019: *XIX* and *Blah Blah*

On February 22, 2019, it was announced that their official debut was set for April 12 with a concert later on in the month with their Japan debut. It was also announced that a reality show for the group will begin airing on March 22.[8] Their Japan debut was put on hold due to [MBK](/source/MBK_Entertainment) wanting to focus on promotions in South Korean first.

A series of individual teasers was released per member before the debut timeline was announced.[9] On April 5 the debut timeline started and the name of the album was revealed to be [XIX](/source/XIX_(album)) with the title track being "Spotlight". A pre-debut track "[Domino](/source/Domino_(1the9_song))" featuring [Crush](/source/Crush_(singer)) was released on April 7 leading up to their official debut on April 13.[10] 1THE9 began promoting the album with "Spotlight" on various music shows.[11][12]

On April 17, they held their debut stage through a V Live special for an hour and thirty minutes. They performed 3 songs, played games, and announced the [fandom name](/source/Fandom_name) and color to be Wonderland and Lime Punch, respectively.[13][14][15]

On October 3, 2019, it was announced that they would return with their second mini-album *Blah Blah* on October 17.[16]

### 2020: *Turn Over*, *Good Bye 1the9* and disbandment

On July 6, 2020, it was announced that they would release their third mini-album *Turn Over* on July 16.[17]

On July 27, 2020, it was confirmed that the group would officially disband on August 8.[18] Before their disbandment, the group released their final EP *Good Bye 1the9* on August 5.[19][unreliable source?][20]

## Members

- Yoo Yong-ha (Korean: 유용하) - leader
- Kim Tae-woo (Korean: 김태우)
- Lee Seung-hwan (Korean: 이승환)
- Shin Ye-chan (Korean: 신예찬)
- [Kim Jun-seo](/source/Kim_Jun-seo) (Korean: 김준서)
- Jeon Do-yeom (Korean: 전도염)
- Jung Jin-sung (Korean: 정진성)
- Jeong Taek-hyeon (Korean: 정택현)
- Park Sung-won (Korean: 박성원)

## Filmography

### Television

Year Network Program Ref. 2018–2019 MBC Under Nineteen [21] 2019 MBC Wonderland [8][22]

### Radio

Year Network Program 2019 MBC Idol Radio MBC FM4U Kim Shin Young's Noon Song of Hope

## Discography

### Extended plays

Title Details Peak chart position Sales KOR [23] XIX Released: April 13, 2019 Label: PocketDol Studio, Kakao M Formats: CD, digital download, streaming 7 KOR: 20,706[24] Blah Blah Released: October 17, 2019 Label: PocketDol Studio, Kakao M Formats: CD, digital download, streaming 15 KOR: 13,454[25] Turn Over Released: July 16, 2020 Label: PocketDol Studio, Kakao M Formats: CD, digital download, streaming 23 KOR: 11,920[26] Good Bye 1the9 Released: August 5, 2020 Label: PocketDol Studio, Kakao M Formats: CD, digital download, streaming 24 KOR: 7,500[26]

### Singles

Title Year Peak chart positions Album KOR [27] JPN [28] "Spotlight" 2019 — — XIX "Blah" — — Blah Blah "Bad Guy" 2020 — — Turn Over "Count" — — Good Bye 1THE9

## Concert tours

- Under Nineteen Final Concert[29]

## References

1. [""4월 정식 데뷔"..'언더나인틴', 1위 센터 전도염x그룹명은 원더나인 \[어저께TV\]"](http://news.chosun.com/site/data/html_dir/2019/02/10/2019021000057.html) (in Korean). *[The Chosun Ilbo](/source/The_Chosun_Ilbo)*. 2019-02-09. [Archived](https://web.archive.org/web/20190214002603/http://news.chosun.com/site/data/html_dir/2019/02/10/2019021000057.html) 2019-02-14 at the Wayback Machine. Retrieved 2019-02-13.

1. Kim, Hyun-sik (February 9, 2019). ["ko:'언더나인틴' 종영, 9인조 보이그룹 '원더나인' 탄생"](https://www.nocutnews.co.kr/news/5101593) (in Korean). *[No Cut News](/source/No_Cut_News)*. [Archived](https://web.archive.org/web/20190213085336/https://www.nocutnews.co.kr/news/5101593) February 13, 2019 at the Wayback Machine. Retrieved November 18, 2023.

1. ["ko:언어19 뉴스"](http://www.imbc.com/broad/tv/ent/under19/news/index.html?idx=253928). *[MBC News](/source/MBC_News)*. [Archived](https://web.archive.org/web/20200604220002/http://www.imbc.com/broad/tv/ent/under19/news/index.html?idx=253928) 2020-06-04 at the Wayback Machine. Retrieved 2019-02-09.

1. ["ko:언어19 뉴스"](http://www.imbc.com/broad/tv/ent/under19/news/index.html?idx=253937). *[MBC News](/source/MBC_News)*. [Archived](https://web.archive.org/web/20200604221034/http://www.imbc.com/broad/tv/ent/under19/news/index.html?idx=253937) 2020-06-04 at the Wayback Machine. Retrieved 2019-02-09.

1. ["크러쉬, '언더나인틴' 데뷔곡 프로듀싱 맡아"](https://entertain.naver.com/now/read?oid=144&aid=0000594970) (in Korean). *[Naver News](/source/Naver_News)*. [Archived](https://web.archive.org/web/20200601085154/https://entertain.naver.com/now/read?oid=144&aid=0000594970) 2020-06-01 at the Wayback Machine. Retrieved 2019-02-09.

1. ["ko:언어19 뉴스"](http://www.imbc.com/broad/tv/ent/under19/news/index.html). *[MBC News](/source/MBC_News)*. [Archived](https://web.archive.org/web/20200225164857/http://www.imbc.com/broad/tv/ent/under19/news/index.html) 2020-02-25 at the Wayback Machine. Retrieved 2019-02-13.

1. ["ko:'완성형 비주얼' 원더나인(1THE9), 매혹적인 아홉 소년들 '마법 같아'"](http://www.newsen.com/news_view.php?uid=201902161627530710&search=title&searchstring=1the9). *Newsen*. [Archived](https://web.archive.org/web/20200717102648/https://www.newsen.com/news_view.php?uid=201902161627530710&search=title&searchstring=1the9) 2020-07-17 at the Wayback Machine.

1. ["원더나인, 3월 22일 리얼리티 방송 시작…데뷔 초읽기 돌입"](https://entertain.naver.com/read?oid=057&aid=0001329917) (in Korean). *[Naver News](/source/Naver_News)*. [Archived](https://web.archive.org/web/20190228191841/https://entertain.naver.com/read?oid=057&aid=0001329917) 2019-02-28 at the Wayback Machine. Retrieved 2019-02-27.

1. ["원더나인, 멤버별 티저영상 릴레이 공개 예고 '데뷔 임박'"](https://entertain.naver.com/read?oid=057&aid=0001336801) (in Korean). *[Naver News](/source/Naver_News)*. [Archived](https://web.archive.org/web/20190401060250/https://entertain.naver.com/read?oid=057&aid=0001336801) 2019-04-01 at the Wayback Machine. Retrieved 2019-04-07.

1. ["원더나인(1THE9) "곧 정식 데뷔…준비된 아이돌의 모습으로 찾아뵐 것" (앳스타일 4월호) \[뉴스엔TV\]"](https://www.newsen.com/news_view.php?uid=201903271930100810) (in Korean). *원더나인(1THE9) "곧 정식 데뷔…준비된 아이돌의 모습으로 찾아뵐 것" (Korean: 앳스타일 4월호) [뉴스엔TV]*. 2019-03-27. [Archived](https://web.archive.org/web/20190401021551/http://newsen.com/news_view.php?uid=201903271930100810) 2019-04-01 at the Wayback Machine. Retrieved 2019-04-07.

1. ["1THE9, 신나고 신나고\[포토엔HD\]"](https://www.newsen.com/news_view.php?uid=201904171824410510) (in Korean). *1THE9, 신나고 신나고[포토엔HD]*. 2019-04-17. [Archived](https://web.archive.org/web/20200717185326/https://www.newsen.com/news_view.php?uid=201904171824410510) 2020-07-17 at the Wayback Machine. Retrieved 2019-04-19.

1. 김효진 (2019-04-17). ["ko:김효진\[현장\] '언더나인틴'→데뷔 원더나인(1THE9), 활동 기간 동안 선보일 파릇파릇한 매력 (종합)"](http://www.topstarnews.net/news/articleView.html?idxno=614230) (in Korean). *톱스타뉴스*. [Archived](https://web.archive.org/web/20190417143437/http://www.topstarnews.net/news/articleView.html?idxno=614230) 2019-04-17 at the Wayback Machine. Retrieved 2019-04-19.

1. 임경진 (2019-04-17). ["\[4K직캠\] 원더나인(1THE9), 수록곡 'Domino' 무대(190417)"](http://www.topstarnews.net/news/articleView.html?idxno=614036) (in Korean). *톱스타뉴스*. [Archived](https://web.archive.org/web/20200719093515/http://www.topstarnews.net/news/articleView.html?idxno=614036) 2020-07-19 at the Wayback Machine. Retrieved 2019-04-19.

1. 임경진 (2019-04-17). ["\[4K직캠\] 원더나인(1THE9), 수록곡 '우리들의 이야기' 무대(190417)"](http://www.topstarnews.net/news/articleView.html?idxno=614039) (in Korean). *톱스타뉴스*. [Archived](https://web.archive.org/web/20200717190831/http://www.topstarnews.net/news/articleView.html?idxno=614039) 2020-07-17 at the Wayback Machine. Retrieved 2019-04-19.

1. 임경진 (2019-04-17). ["\[4K직캠\] 원더나인(1THE9), 타이틀곡 'Spotlight' 무대(190417)"](http://www.topstarnews.net/news/articleView.html?idxno=614031) (in Korean). *톱스타뉴스*. [Archived](https://web.archive.org/web/20200717111724/http://www.topstarnews.net/news/articleView.html?idxno=614031) 2020-07-17 at the Wayback Machine. Retrieved 2019-04-19.

1. ["원더나인, 17일 '속삭여'로 5개월만 컴백 확정(공식)"](https://entertain.naver.com/read?oid=609&aid=0000182090) (in Korean). *[Naver News](/source/Naver_News)*. [Archived](https://web.archive.org/web/20191113185819/https://entertain.naver.com/read?oid=609&aid=0000182090) 2019-11-13 at the Wayback Machine. Retrieved 2019-10-04.

1. ["ko:원더나인, 16일 세 번째 미니앨범으로 컴백…강렬함 넘치는 이미지 공개"](https://n.news.naver.com/entertain/article/215/0000883693) (in Korean). *[Naver News](/source/Naver_News)*. [Archived](https://web.archive.org/web/20200706220723/https://n.news.naver.com/entertain/article/215/0000883693) 2020-07-06 at the Wayback Machine. Retrieved 2020-07-06.

1. ["ko:\[단독\]원더나인, 8월 8일 끝으로 공식적 해산"](http://m.joynews24.com/v/1285268) (in Korean). *joynews24*. July 27, 2020. [Archived](https://web.archive.org/web/20200728014323/http://m.joynews24.com/v/1285268) July 28, 2020 at the Wayback Machine. Retrieved July 28, 2020.

1. ["ko:\[단독\] 7일 후 다시는 못 보는 원더나인 아이돌 그룹"](https://m.post.naver.com/viewer/postView.nhn?volumeNo=28959657&memberNo=36638490) (in Korean). *post.naver.com*. [Archived](https://web.archive.org/web/20200802132837/https://m.post.naver.com/viewer/postView.nhn?volumeNo=28959657&memberNo=36638490) 2020-08-02 at the Wayback Machine. Retrieved 2020-08-02.

1. ["ko:'계약만료' 원더나인, 5일 마지막 앨범 'Good Bye 1THE9' 발매 확정(공식)"](https://n.news.naver.com/entertain/now/article/609/0000308796) (in Korean). *[Naver News](/source/Naver_News)*. [Archived](https://web.archive.org/web/20200928142754/https://n.news.naver.com/entertain/now/article/609/0000308796) 2020-09-28 at the Wayback Machine. Retrieved 2020-08-02.

1. ["ko:언더19"](http://www.imbc.com/broad/tv/ent/under19/index.html). *[MBC News](/source/MBC_News)*. [Archived](https://web.archive.org/web/20200223003044/http://www.imbc.com/broad/tv/ent/under19/index.html) 2020-02-23 at the Wayback Machine. Retrieved 2019-02-09.

1. ["원더나인, 데뷔 첫 리얼리티 '원더랜드' 타임테이블 공개"](https://entertain.naver.com/read?oid=311&aid=0000962848) (in Korean). *[Naver News](/source/Naver_News)*. [Archived](https://web.archive.org/web/20190306111741/https://entertain.naver.com/read?oid=311&aid=0000962848) 2019-03-06 at the Wayback Machine. Retrieved 2019-03-06.

1. **XIX*: ["Circle Chart"](http://gaonchart.co.kr/main/section/chart/album.gaon?nationGbn=T&serviceGbn=&targetTime=16&hitYear=2019&termGbn=week) (in Korean). *Gaon*. [Archived](https://web.archive.org/web/20190425054428/http://gaonchart.co.kr/main/section/chart/album.gaon?nationGbn=T&serviceGbn=&targetTime=16&hitYear=2019&termGbn=week) April 25, 2019 at the Wayback Machine. Retrieved July 27, 2020. **Blah Blah*: ["Circle Chart"](http://gaonchart.co.kr/main/section/chart/album.gaon?nationGbn=T&serviceGbn=&targetTime=43&hitYear=2019&termGbn=week) (in Korean). *Gaon*. [Archived](https://web.archive.org/web/20191031023517/http://gaonchart.co.kr/main/section/chart/album.gaon?nationGbn=T&serviceGbn=&targetTime=43&hitYear=2019&termGbn=week) October 31, 2019 at the Wayback Machine. Retrieved July 27, 2020. **Turn Over*: ["Circle Chart"](http://gaonchart.co.kr/main/section/chart/album.gaon?nationGbn=T&serviceGbn=&targetTime=31&hitYear=2020&termGbn=week) (in Korean). *Gaon*. [Archived](https://web.archive.org/web/20210107161954/http://gaonchart.co.kr/main/section/chart/album.gaon?nationGbn=T&serviceGbn=&targetTime=31&hitYear=2020&termGbn=week) January 7, 2021 at the Wayback Machine. Retrieved August 1, 2020. **Good Bye 1the9*: ["Circle Chart"](http://gaonchart.co.kr/main/section/chart/album.gaon?nationGbn=T&serviceGbn=&targetTime=32&hitYear=2020&termGbn=week) (in Korean). *Gaon*. [Archived](https://web.archive.org/web/20150203005818/http://gaonchart.co.kr/main/section/chart/album.gaon?nationGbn=T&serviceGbn=&targetTime=32&hitYear=2020&termGbn=week) February 3, 2015 at the Wayback Machine. Retrieved August 8, 2020.

1. ["ko:국내 대표 음악 차트 가온차트!"](http://gaonchart.co.kr/). *[Gaon Chart](/source/Gaon_Chart)*. [Archived](https://web.archive.org/web/20160505075342/http://www.gaonchart.co.kr/) 2016-05-05 at the Wayback Machine. Retrieved 2019-12-11.

1. ["Circle Chart"](http://gaonchart.co.kr/main/section/chart/album.gaon?nationGbn=T&serviceGbn=&targetTime=12&hitYear=2019&termGbn=month) [December 2019 Album Chart] (in Korean). *[Gaon Chart](/source/Gaon_Chart)*. [Archived](https://web.archive.org/web/20201016200603/http://gaonchart.co.kr/main/section/chart/album.gaon?nationGbn=T&serviceGbn=S1020&targetTime=12&hitYear=2019&termGbn=month) October 16, 2020 at the Wayback Machine. Retrieved January 10, 2020.

1. ["Circle Chart"](http://gaonchart.co.kr/main/section/chart/album.gaon?nationGbn=T&serviceGbn=&targetTime=08&hitYear=2020&termGbn=month) [August 2020 Album Chart] (in Korean). *[Gaon Chart](/source/Gaon_Chart)*. [Archived](https://web.archive.org/web/20150203005818/http://gaonchart.co.kr/main/section/chart/album.gaon?nationGbn=T&serviceGbn=&targetTime=08&hitYear=2020&termGbn=month) February 3, 2015 at the Wayback Machine. Retrieved September 10, 2020.

1. ["Gaon Digital Chart"](https://web.archive.org/web/20170309051712/http://gaonchart.co.kr/main/section/chart/online.gaon?nationGbn=T&serviceGbn=ALL). [Gaon Chart](/source/Gaon_Chart). Archived from [the original](http://gaonchart.co.kr/main/section/chart/online.gaon?nationGbn=T&serviceGbn=ALL) on 2017-03-09.

1. ["Oricon Chart"](https://www.oricon.co.jp/prof/668282/) (in Japanese). Oricon Music Chart. [Archived](https://web.archive.org/web/20230818034422/https://www.oricon.co.jp/prof/668282/) 2023-08-18 at the Wayback Machine. Retrieved 2023-08-18.

1. Park, Han-byeol (January 29, 2019). ["ko:'언더나인틴' 19명의 예비돌이 펼치는 파이널 콘서트 "또 한 번 열정 불태울 것""](https://program.imbc.com/Enews/Detail/under19?idx=253328). *[MBC News](/source/MBC_News)*. [Archived](https://web.archive.org/web/20200225164857/http://www.imbc.com/broad/tv/ent/under19/news/index.html) 2020-02-25 at the Wayback Machine. Retrieved 2019-02-09.

## External links

- [1THE9](https://www.facebook.com/official.1the9) on Facebook

---
Adapted from the Wikipedia article [1the9](https://en.wikipedia.org/wiki/1the9) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/1the9?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.