K-pop Boy Group Teen Teen: Debut After Members’ Participation in Mnet’s ‘Produce X 101’

teen teen

TEEN TEEN: A Mixture of Adorable and Youthful Boys

TEEN TEEN is one of the K-pop groups that were formed under Maroo Entertainment and made their debut in 2019. The group consisted of Woojin, Taeseung, and Jinwoo who had a bunch of charms and talents as well. Let’s find out more about them in this Channel-Korea article below.

TEEN TEEN’s Full Profile


General information about TEEN TEEN:

Group Name: TEEN TEEN ()

Debut Date: September 18th, 2019

Agency: Maroo Entertainment

Official Twitter: maroo_ent

TEEN TEEN’s Woojin


Birth Name: Lee Woo-jin (이우진)

Stage Name: Lee Woo-jin (이우진)

Date of Birth: April 7th, 2003

Age: 18 years old

Zodiac Sign: Aries

Height: 183 cm

Weight: 65 kg

Blood Type: A

Position: Visual, Lead Dancer, Lead Vocalist, Lead Rapper

Years Active: 2019–present

Label: Maroo Entertainment

Associated With: TEEN TEEN, GHOST9

Interesting Facts About Woojin

  • Woojin was a trainee for 9 months
  • He loves to watch movies, do a lot of sports, and play with his siblings
  • One of Woojin’s specialties is playing soccer
  • He is known for his stunning visual appearance

TEEN TEEN’s Taeseung


Birth Name: Lee Tae-seung (이태승)

Stage Name: Lee Tae-seung (이태승)

Date of Birth: December 19th, 2003

Age: 17 years old

Zodiac Sign: Sagittarius

Height: 182 cm

Weight: 66 kg

Blood Type: O

Position: Main Vocalist, Dancer

Years Active: 2019–present

Label: Maroo Entertainment

Associated With: TEEN TEEN, GHOST9

Interesting Facts About Taeseung

  • Taeseung was a trainee for three months
  • He loves to play games and workout
  • He also loves the flavor of chocolate mint
  • One of his specialties is singing
  • Taesung is known as a reptile and insect lover. He has owned a bunch of reptiles as his pets

TEEN TEEN’s Jinwoo


Birth Name: Lee Jin-woo (이진우)

Stage Name: Lee Jin-woo (이진우)

Date of Birth: September 13th, 2004

Age: 16 years old

Zodiac Sign: Virgo

Height: 172 cm

Weight: 60.9 kg

Blood Type: A

Position: Main Rapper, Main Dancer, Vocalist, Maknae

Years Active: 2019–present

Label: Maroo Entertainment

Associated With: TEEN TEEN, GHOST9

Interesting Facts About Jinwoo


Pre-debut Appearance in Mnet’s Produce X 101


Before making their debut as members of TEEN TEEN, Woojin, Taeseung, and Jinwoo had already gained a lot of attention through their participation in Produce X 101 as contestants in 2019. Woojin, Taeseung, and Jinwoo appeared with their charms which made people easily recognize them afterward.

All of them were showing off their amazing talents for dancing, singing, and many more. They also made stage performances with other Produce X 101 contestants as well. From their introduction video, we could see their pure and adorable image which became their attractiveness.



Unfortunately, the three of them didn’t make it to debut with the group from Produce X 101, even though the fans were expecting it. Woojin was eliminated with the final rank #41, Taeseung was eliminated with the final rank #51, while Jinwoo was eliminated with the final rank #22. Nevertheless, they were eventually able to debut as a three-member boy group named TEEN TEEN!

Check out their stage performance in Produce X 101, here:



Debut as Members of TEEN TEEN


TEEN TEEN officially made their debut on September 18th, 2019, and released their first single titled “It’s On You” which is included in their mini-album Very, On Top. The mini-album consists of five tracks with “It’s On You” serving as the lead track which came up with a music video as well. Their agency also released a bunch of group teasers which portrayed Woojin, Taeseung, and Jinwoo with a carefree, boyish, and vibrant concept.


From their first appearance, TEEN TEEN members emphasized the cute, fresh, and youthful image that suited really well with the concept of their debut single “It’s On You”. Since the members made their debut at such a young age, TEEN TEEN also emphasized fresh music and teen pop music as well!

TEEN TEEN’s MVs Throughout The Era


From their debut, TEEN TEEN have released the mini-album Very, On Top and “It’s On You” as the title track. The single came up with a colorful music video which portrayed Woojin, Taeseung, and Jinwoo with colorful outfits and a youthful image. The members were dressed like pilots in a colorful plane, then they also danced together in a pastel-colored room.

Check out the music video, here:



One year after their debut, TEEN TEEN transformed into a nine-member boy group named GHOST9. Still scouted under Maroo Entertainment, the three of them were included as the members of GHOST9 with other members such as Hwang Dong-jun, Shin, Choi Jun-seong, Lee Kang-sung, Son Jun-hyung, and Prince.


The group released their first mini-album entitled Pre Episode 1: Door on September 23rd, 2020. Meanwhile, “Think of Dawn” was the title track of the album which came up with the sci-fi concept music video.

Check out the music video, here:

That was all the information about TEEN TEEN. After starting their entertainment career as TEEN TEEN, they eventually transformed into something a lot bigger as members of the current boy group GHOST9, which has managed to significantly increase their popularity. Let’s give them a lot of support and love.