Under Nineteen
👁 Image
Genre	Variety
Written by	Jeong In-hwan Ko Young-min
Directed by	Jeong Chang-young Lim Kyung-sik
Presented by	Kim So-hyun
Country of origin	South Korea
Original language	Korean
No. of seasons	1
No. of episodes	14
Production
Producers	Lim Kyung-sik Jung Chang-won
Running time	90 minutes 120 minutes (Finale)
Production companies	MBC MBK Entertainment
Original release
Network	MBC TV
Release	November 3, 2018 (2018-11-03) – February 9, 2019 (2019-02-09)

Under Nineteen (Korean: 언더나인틴) was a survival show on Munhwa Broadcasting Corporation for trainees under the age of 19 years old. There were a total of 57 contestants competing to debut as a member of 1THE9. The trainees were put into groups that specializes in vocals, rapping, and performance. The show aired between November 3, 2018 and February 9, 2019.

Under Nineteen introduces singers, rappers, dancers and also trainees with the ability to produce music and choreograph. 57 aspiring boy band members will come to compete for a spot to be in a new K-pop idol group. Once down to the final 19 trainees only 9 of them will have the chance of being the next idol group. The winning group will sign a contract for 12 months and be managed by MBK Entertainment.^[1]

• Kim So-hyun - Host & Official Supporter of the group
• Dynamic Duo - Rap Director, Gaeko & Choiza
• Crush - Vocal Director
• Solji - Vocal Director, member of EXID
• Eunhyuk - Performance Director, member of Super Junior
• Hwang Sang-hoon - Performance Director, SM Entertainment Performance Director & Choreographer for Super Junior, SHINee, EXO & NCT.

• Sunday
• Yesung
• Yunho
• Don Spike
• Jaehyo, P.O, U-Kwon
• Ravi, Ken
• Hani, LE
• Leeteuk
• Shindong
• Yerin
• J-Hope
• Kai

57 trainees, who aspire to become the next K-pop idol, divide up into three groups of 19. Vocal Team, Rap Team, and Performance Team all show off what they can do in their first Ranking Evaluation. The directors watch and evaluate their performances and give them a score. According to their scores, they are ranked in their team. These rankings will prove to be important for the first mission.

The trainees from Rap team, Vocals team, and Performance team present their own unique stages to be ranked in their team. The trainees compete against each other and the ranking keeps changing. After that, the trainees move to the training camp to go through special training sessions.

Each team is given a theme song for this next mission. Their parts are divided amongst the members according to their rankings. Much to their displeasure, the parts are mostly given to the high-ranking members. However, they are told that there will be a Judgment Day where the members can take one another's parts. Some will gain parts while others will lose them. The Vocal team performed their song "Go Tomorrow" and was ranked by the studio audience and online viewers. Upon the airing of this episode, all three songs each team performed had a music video released.^{[2][unreliable source?]}

After the Vocal team's performance, the remaining two teams are nervous. In the midst of the overwhelming atmosphere, the Performance team takes the stage. We get a sneak peek at what their practices were like. Despite the best dancers being in one team, they go through a lot of struggles and get reprimanded on their attitude. It's Judgment Day, and many of the low-ranking members challenge the members with parts for an opportunity to stand in the spotlight.

With just two days left before the final performance, Team Rap is in a lot of trouble. In the eyes of their directors, they are unprepared for their performance, and the tension causes a rift between the members. After the final performance, the trainees gather to hear the results of the on-site voting as well as their second mission, position evaluation. They are given 30 K-Pop songs and each team gets to perform 2 songs of their director's choice.

In the midst of preparing for their second ranking evaluation, the 57 trainees are faced with the reality that they must say goodbye to 8 members. With Team Performance in first place, they can focus solely on their second performance, but Team Rap and Team Vocals cannot ignore the fact that they could be eliminated.

As there are two teams for each position, the Position Competition is divided into Round 1 and Round 2. After the devastating loss of almost half their members, Team Rap's Team "H.E.R" faces a crisis in their performance. During the rehearsals, everyone is intimidated by Team Vocals' Team "I Need U". In a twist of fate, Team Performance and Team Rap go back to back in their performance of "H.E.R".

The three teams prepare for Round 2. With Team Rap in the lead, the other two teams are prepared to do their best to beat them. However, during their Interim evaluations, the directors of Team Rap and Team Vocals are disappointed with the quality and decide that changes must be made to win.

The trainees take a break from their preparations to show off their various charms for Christmas. Super Junior's Shindong and Leeteuk as well as GFRIEND's Yerin make a guest appearance as MCs for a special corner called "Weekly Trainees". The trainees compete with each other to win prizes to enjoy while being in the training center. Also, the Second Ranking Announcement is held, and the trainees must say goodbye to nine people.

This time the three teams are combined into 6 units to compete with one another for a benefit of 10,000 votes. The combinations of each unit was chosen by fans on the online voting system for the following songs: "Fake Love" by BTS, "Growl" by Exo, "Sherlock" by SHINee, "Fiction" by BEAST, "Mirotic" by TVXQ and "Be Mine" by INFINITE. They must prepare a performance with an internationally ranked song. Yesterday's friend becomes today's enemy as the mission gets heated up. Taek Hyeon shows off his MC skills when the units choose their competitor. Special director J-Hope stops by to help the "Fake Love" team with the choreography and gives his expertise.^[3]

The results for the first round of the Shuffle Mission are revealed. Unit "Fiction" goes up against Unit "Be Mine", and Unit "Sherlock" goes up against Unit "Growl". During practice, there is trouble between the members of Unit "Fiction", and it is apparent even on stage during the rehearsals. Unit "Sherlock" is upset for being treated as the weakest link and practices really hard to beat Unit "Growl". Meanwhile, Kai from EXO gives tips to Unit "Growl".^[4]

It's the last mission before the live broadcast. Among the remaining trainees, only 25 will make it to the Collaboration Mission. During the Third Ranking Announcement, So Hyun has a surprising announcement regarding the dismissal of one of the trainees for misconduct. The Collaboration Mission begins, and each team and their directors put on the performance of a lifetime. Knowing it might be their last shot, everyone works hard to leave no regrets.

It's the day of the Fourth Ranking Announcement, and the top 19 trainees have been determined. During the announcement So Hyun broke the news about Ji Jin-seok and Bang Jun-hyuk's departure for health reasons. After the announcements, the trainees gather for a special segment called "The Trainee." With special MCs, Shindong and Ye Rin, we get a look at the trainees' first audition, their work fashion, and a prank that shows their character. The trainees laugh and enjoy themselves one last time before the final live broadcast.

After months of blood, sweat, and tears put into this competition, UNDER NINETEEN is finally coming to an end. Today is the long-awaited live broadcast to find out who will make it into the final 9 and debut. The trainees divide up into two groups to perform new songs. There is tension in the air as it's their last chance to gain the support of their fans and debut. Who will make it into the top nine and debut as 1the9?

Color key (In order of contestant's rank on the show)

Top 9

Contestants eliminated in the final episode

Contestants eliminated in the fourth rounds of eliminations

Contestants eliminated in the third rounds of eliminations

Contestants eliminated in the second rounds of eliminations

Contestants eliminated in the first rounds of eliminations

Contestants that left the show

57 contestants
Jeon Do-yum (전도염)	Jung Jin-sung (정진성)	Kim Tae-woo (김태우)	Shin Ye-chan (신예찬)	Jeong Taek-hyeon (정택현)
Yoo Yong-ha (유용하)	Park Sung-won (박성원)	Lee Seung-hwan (이승환)	Kim Jun-seo (김준서)	Kim Shi-hyun (김시현)
Suren (수런)	Kim Young-won (김영원)	Lee Sang-min (이상민)	Song Byeong-hee (송병희)	Lee Ye-chan (이예찬)
Bae Hyeon-jun (배현준)	Lee Jong-won (이종원)	Park Si-young (박시영)	Wumuti (우무티)	Jeon Chan-bin (전찬빈)
Kim Sung-ho (김성호)	Kang Jun-hyuck (강준혁)	Yoon Tae-kyung (윤태경)	Ji Jin-seok (지진석)	Bang Jun-hyuk (방준혁)
Kim Jung-woo (김정우)	Park Jin-oh (박진오)	Kim Young-seok (김영석)	Shin Chan-bin (신찬빈)	Lim Youn-seo (임윤서)
Lee Dong-joon (이동준)	Song Jae-won (송재원)	Min (민)	Oh Da-han (오다한)	Lim Hyeong-bin ( 임형빈 )
Son Jin-ha ( 손진하)	Lee Jae-eok (이재억)	Kim Kun (김건)	Christian (크리스티안)	Choi Soo-min (최수민)
Koo Han-seo (구한서)	Kim Kang-min (김강민)	Kim Ye-joon (김예준)	Nam Do-hyon (남도현)	Eddie (에디)
Jang Rui (장루이)	Jeong Won-beom (정원범)	Jung Hyun-jun (정현준)	Kosuke (코스케)	Kim Bin (김빈)
Kim Jun-jae (김준재)	Yoon Do-yeon (윤도연)	Lee Min-woo (이민우)	Lee Jun-hwan (이준환)	Chang Min-su (장민수)
Jay Chang (제이창)	Choi Yong-hun (최용훈)

The top 9 contestants were determined by online and onsite voting, the results of which were announced at the end of each episode. The top 9 contestants at the final vote determined the final group.

Color key

New Top 9

#	Episode 6	Episode 9	Episode 10	Jan 9	Episode 12	Episode 13	Jan 30	Episode 14
1	Wumuti	Wumuti =	Jung Jin-sung ↑10	Jung Jin-sung =	Jeon Do-yum ↑2	Jeon Do-yum =	Jeon Do-yum =	Jeon Do-yum =
2	Kim Shi-hyun	Kim Sung-ho ↑18	Choi Soo-min ↑1	Choi Soo-min =	Jung Jin-sung ↓1	Jung Jin-sung =	Jung Jin-sung =	Jung Jin-sung =
3	Jeon Do-yum	Choi Soo-min ↑5	Wumuti ↓2	Jeon Do-yum ↑4	Shin Ye-chan ↑2	Wumuti ↑8	Kim Tae-woo ↑3	Kim Tae-woo =
4	Jung Jin-sung	Yoon Tae-kyung ↑6	Shin Ye-chan ↑2	Wumuti ↓1	Lee Seung-hwan ↑4	Yoo Yong-ha ↑4	Shin Ye-chan ↑1	Shin Ye-chan =
5	Shin Ye-chan	Jeon Do-yum ↓2	Jeong Taek-hyeon ↑13	Shin Ye-chan ↓1	Bang Jun-hyuk ↑4	Shin Ye-chan ↓2	Yoo Yong-ha ↓1	Jeong Taek-hyeon ↑4
6	Suren	Shin Ye-chan ↓1	Park Sung-won ↑1	Jeong Taek-hyeon ↓1	Park Sung-won ↑1	Kim Tae-woo ↑6	Kim Shi-hyun ↑1	Yoo Yong-ha ↓1
7	Ji Jin-seok	Park Sung-won ↑30	Jeon Do-yum ↓2	Park Sung-won ↓1	Jeong Taek-hyeon ↓1	Kim Shi-hyun ↑6	Lee Seung-hwan ↑1	Park Sung-won ↑1
8	Choi Soo-min	Lee Sang-min ↑26	Kim Sung-ho ↓6	Lee Seung-hwan ↑1	Yoo Yong-ha ↑5	Lee Seung-hwan ↓4	Park Sung-won ↑2	Lee Seung-hwan ↓1
9	Bang Jun-hyuk	Ji Jin-seok ↓2	Lee Seung-hwan ↑3	Bang Jun-hyuk ↑1	Ji Jin-seok ↑3	Jeong Taek-hyeon ↓2	Jeong Taek-hyeon =	Kim Jun-seo ↑2

During the last episode aired on February 9, 2019, Kim So-hyun and Leeteuk announced the unit boy band's name: 1THE9 (원더나인).

#	Episode 14 (Total votes)
	Name	Votes	Company
1	Jeon Do-yum	678,953	Play M Entertainment
2	Jung Jin-sung	500,929	Play M Entertainment
3	Kim Tae-woo	399,509	A Team Entertainment
4	Shin Ye-chan	390,005	TOP Media
5	Jung Taek-hyeon	377,883	Management Air
6	Yoo Yong-ha	347,424	OUI Entertainment
7	Park Sung-won	342,430	A Team Entertainment
8	Lee Seung-hwan	325,754	Play M Entertainment
9	Kim Jun-seo	321,288	OUI Entertainment

#	Team	Song	Votes
1	Performance	"We Are Young"	253
2	Vocal	"Go Tomorrow"	201
3	Rap	"Friends"	185

Color key

#	Team	Group	Original artist	Song	Contestant	Votes	Total votes
1	Vocal	A	BTS	"I Need U"	Kang Jun-hyuck	214	455
					Kim Jung-woo
					Lim Hyeong-bin
					Jeon Chan-bin
					Jung Jin-sung
					Ji Jin-seok
		B	EXO	"Love Me Right"	Kim Kun	241
					Kim Young-seok
					Kim Young-won
					Kim Tae-woo
					Bae Hyeon-jun
					Shin Ye-chan
					Yoon Tae-kyung
					Lee Dong-joon
					Lee Jae-eok
					Lim Youn-seo
2	Performance	A	Block B	"H.E.R"	Kim Kang-min	223	450
					Park Si-young
					Song Byeong-hee
					Song Jae-won
					Suren
					Shin Chan-bin
					Eddie
					Oh Da-han
					Lee Seung-hwan
					Christian
		B	VIXX	"Shangri-La"	Kim Shi-hyun	227
					Kim Jun-seo
					Min
					Son Jin-ha
					Wumuti
					Lee Jong-won
					Jeon Do-yum
					Jeong Won-beom
					Kosuke
3	Rap	A	Block B	"H.E.R"	Kim Sung-ho	236	437
					Park Sung-won
					Bang Jun-hyuk
					Jang Rui
					Jung Hyun-jun
					Choi Soo-min
		B	NCT U	"Boss"	Koo Han-seo	201
					Kim Ye-joon
					Nam Do-hyon
					Park Jin-oh
					Yoo Yong-ha
					Lee Sang-min
					Lee Ye-chan
					Jeong Taek-hyeon

Color key

Leader

Round	Team	Original artist	Special director	Song	Contestant	Votes
1	1	TVXQ	"Mirotic"	Lee Seung-hwan	289
				Wumuti
				Kim Tae-woo
				Song Byeong-hee
				Yoo Yong-ha
				Lee Dong-jun
	2	BTS	J-Hope	"Fake Love"	Shin Ye-chan	373
					Jeon Do-yum
					Yoon Tae-kyung
					Kim Jun-seo
					Lim Hyeong-bin
					Lee Sang-min
					Kang Jun-hyuk
2	3	INFINITE	"Be Mine"	Kim Shi-hyun	335
				Kim Young-seok
				Bae Hyun-jun
				Taek-hyeon
				Son Jin-ha
				Lee Jae-eok
				Min
	4	Beast	"Fiction"	Shin Chan-bin	303
				Ji Jin-seok
				Choi Soo-min
				Jeon Chan-bin
				Lee Jongwon
				Kim Sung-ho
3	5	SHINee	"Sherlock"	Kim Young-won	174
				Lee Ye-chan
				Kim Kun
				Christian
				Lim Yoon-seo
				Park Jin-oh
				Oh Da-han
	6	EXO	Kai	"Growl"	Song Jae-won	454
					Jung Jin-sung
					Bang Jun-hyuk
					Kim Jung-woo
					Park Si-young
					Suren
					Park Sung-won

Team	Original Artist	Song
Vocal	Crush	"Don't Forget"
Rap	Dynamic Duo	"Friday Night"
Performance	Super Junior	"U" & "Black Suit"

Title	Year	Recorded by
Go Tomorrow	2018	Vocal Team
Friends		Rap Team
We Are Young		Performance Team
Like A Magic	2019	Team A
Shooting Star		Team B

In the table below, the blue numbers represent the lowest ratings and the red numbers represent the highest ratings.

Ep.	Broadcast date	Average audience share
		AGB Nielsen
		Nationwide[5]	Seoul[6]
1	November 3, 2018	2.2%	NR
2	November 10, 2018	1.7%	NR
3	November 17, 2018	1.9%	NR
4	November 24, 2018	1.5%	NR
5	December 1, 2018	1.2%	NR
6	December 8, 2018	1.4%	NR
7	December 15, 2018	1.2%	NR
8	December 22, 2018	1.5%	NR
9	December 29, 2018	1.6%	NR
10	January 5, 2019	1.6%	NR
11	January 12, 2019	1.1%	NR
12	January 19, 2019	0.9%	NR
13	January 26, 2019	1.0%	NR
14	February 9, 2019	1.3%	NR

Year	Award	Category	Recipients	Result	Ref.
2018	18th MBC Entertainment Awards	Excellence Award, Music/Talk Category (Female)	Kim So-hyun	Won	[7]

• 1the9 released their debut extended play (EP) XIX on April 13, 2019. After one and a half years of activities, 1the9 disbanded on August 8, 2020 following their contract expiration.^[8][9]
  • Jeon Do-yum signed an exclusive contract with Bluedot Entertainment and debuted as the members of Just B under the stage names DY and Bain on June 30, 2021.^[10][11]
  • Kim Tae-woo signed an exclusive contract with Keystone Entertainment and debuted as a member of BLANK2Y under the stage name Louis.^[12]
  • Shin Ye-chan signed an exclusive contract with Spire Entertainment and debuted as a member of Omega X on June 30, 2021.^[13]
  • Jeong Taek-hyeon is currently active as an actor.
  • Yoo Yong-ha and Kim Jun-seo debuted as the members of Oui Entertainment's boy group WEi.^[14]
    • Kim Jun-seo also participated in Mnet's survival show Boys II Planet, and made it into the final group, Alpha Drive One.
  • Park Sung-won signed an exclusive contract with RAIN Company and debuted as a member of Ciipher.^[15]
  • Lee Seung-hwan left Play M Entertainment and participated on SBS's reality survival show Loud. However, he was eliminated in the first round of the show.^[16] In 2021 Lee joined RBW but has since left. He later appeared as a contestant on the Mnet survival show Boys Planet, but he did not make it into the final group, Zerobaseone.^[17][18]
  • Jung Jin-sung left Play M Entertainment.

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