K-Pop Group CLASS:y Profile, Facts, Debut Date


Let’s Get to Know CLASS:y Profile Members!

In 2022, M25 formed a girl group through a survival show program namely My Teenage Girl, the group name is CLASS:y. This group is consist of 7 talented and beautiful members, namely Jimin, Chaewon, Seonyou, Hyeju, Boeun, Riwon, and Hyungseo. After the show, they debuted under the M25 agency and for the Japan promotion under Universal Music Japan. Then, when is the date of their debut also members profiles?

So, regarding this, Byeol Korea provides information all about the group pre-debut until their debut as well as the member’s profiles. So, keep on reading this article!

CLASS:y Group Profile


Group Name : CLASS:y (클라씨)

Members : Hyunseo, Hyeju, Chaewon, Seonyou, Boeun, Jimin, Riwon

Agency : M25

Debut Year : 2022

Fandom name : CLIKE:y

Fandom Color : Pink

Instagram : @m25_classy // @classy_japan_official

Twitter : @M25_CLASSy // @classy_jp

TikTok : m25_classy

Facebook : M25_CLASSy

Cafe Daum : M25.CLASSy

YouTube : CLASS:y

CLASS:y Hyeju Profile

Name : Hong Hye Ju (홍혜주)

Stage name : Hyeju (혜주)

Birth date : December 9, 2003

Birth place : Jamsil-dong, Songpa-gu, Seoul, South Korea

Height : 165 cm (5’5″)

Weight : 45 kg

Position : Leader & Main Dancer

Blood type : O

Zodiac : Sagittarius

Chinese zodiac : Goat

Nationality : Korean

Hyeju Interesting Facts

  • In My Teenage Girl survival show, Hyeju got ranked 4th in the finale.
  • Black is her favorite color.
  • Hyeju is Kep1er’s Dayeon’s classmate, they were even on the same dance team at their school.
  • Hyeju thinks that she looks like a squid, but actually, she looks like BLACKPINK’s Jisoo.
  • In the first appearance, Hyeju performed “Friends” by Anne Marie and Marshmallow then she passed the audition.
  • Hyeju is also friends with many idols like AMAZON’s Hyerim, Street Girls Fighter TURNS’s Heesoo and Nain, Newnion Simmon.
  • Her nicknames are “Baekseolgi” and “Puppy”.
  • listening to music, dancing, and cooking are her hobbies.
  • She’s very flexible.
  • Her MBTI type is ISFJ.

CLASS:y Chaewon Profile

Name : Yoon Chae-won (윤채원)

Stage name : Chaewon (채원)

Birth date : June 4, 2003

Birth place : Deokpung-dong, Hanam, Gyeonggi-do, South Korea

Height : 161 cm (5’3″)

Weight : 42 kg

Position : Main Vocalist

Blood type : O

Zodiac : Gemini

Chinese zodiac : Goat

Nationality : Korean

Chaewon Facts

  • Same as Hyeju, Chaewon’s favorite color is black.
  • In My Teenage Girl, her final rank is 7th.
  • Chaewon is a big fan of SISTAR and BIG BANG.
  • She’s called “Fake maknae” because of her cute face.
  • Chaewon chooses IU and Taeyeon as her role models.
  • Her favorite music genre is R&B.
  • In My Teenage Girl, Chaewon has a motto namely “Just do it”.
  • Her MBTI type is ISTP.
  • She describes herself as a rabbit, book lover, and squirrel.

CLASS:y Hyungseo Profile

Name : Myung Hyung-seo (명형서)

Stage name : Hyungseo (명형서)

Birth date : June 25, 2001

Birth place : Yeongtong-gu, Suwon, Gyeonggi-do, South Korea

Height : 163 cm (5’4″)

Weight : 43 kg

Position : Visual & Lead Vocalist

Blood type : A

Zodiac : Cander

Chinese zodiac : Snake

Nationality : Korean

Hyungseo Interesting Facts!

  • Her final ranked is 3rd
  • She is an ESFJ.
  • Black is her favorite color.
  • She can and knows how to play guitar.
  • Hyungseo lived in Texas for 6 years, so that’s why she can speak English fluently.
  • In the group, she calls as the “Happy Virus”.
  • Hyungseo very likes spicy foods, such as spicy-enoki mushroom and baldak sauce.
  • He hates neon colors, and orange juice.
  • This happy virus has a pet dog.
  • On November 27, 2017, she debuted with Busters and left the group on March 29, 2020, because she wanted to focus on her studies.
  • She graduated from Hanlim Multi Art School majoring in the Broadcasting & Entertainment Department.

CLASS:y Riwon Profile

Name : Kim Ri-won (김리원)

Stage name : Riwon (리원)

Birth date : January 11, 2007

Birth place : Sang-dong, Yeoju, Gyeonggi-do, South Korea

Height : 156 cm (5’1″)

Weight : 40 kg

Position : Lead Dancer & Lead Vocalist

Blood type : AB

Zodiac : Capricorn

Chinese zodiac : Pig

Nationality : Korean

Riwon Interesting Facts

  • Apart from being an idol, she is a model and has many endorsements.
  • Her nickname is “Kim Lemon”.
  • She is left-handed.
  • Her MBTI type is ESFP.
  • She appeared and acted in “My Mukbang Diary” and “My YouTube Diary”.
  • Bungeo-pang is her favorite food.
  • In the finale episode, she ranked 5th in the My Teenage Girl survival show.
  • Riwon is a big fan of TWICE and BIG BANG.
  • She really likes greek yogurt.

CLASS:y Jimin Profile

Name : Won Ji-min (원지민)

Stage name : Jimin (지민)

Birth date : November 25, 2007

Birth place : Bangok-dong, Wonju, Gangwon-do, South Korea

Height : 172 cm (5’6″)

Weight : 51 kg

Position : Center & Lead Vocalist

Blood type : AB

Zodiac : Sagittarius

Chinese zodiac : Pig

Nationality : Korean

Jimin Facts

  • Her MBTI type is ESFJ.
  • In the final round, Jimin got first place in My Teenage Girl survival show.
  • She likes bubble tea so much.
  • Jimin is full of confidence and all members agree.
  • She drinks pocari sweat, corn silk tea, and yogurt in her daily routine.
  • “Hope Not” by BLACKPINK is became her favorite song all the time.
  • She used to hate mint chocolate, but now she’s too addicted to the flavor.

CLASS:y Boeun Profile

Name : Park Bo-eun (박보은)

Stage name : Boeun (보은)

Birth date : February 11, 2008

Birth place : Busan, South Korea

Height : 157 cm (5’1″)

Weight : 39 kg

Position : Face of the Group & Lead Vocalist

Blood type : O

Zodiac : Aquarius

Chinese zodic : Rat

Nationality : Korean

Boeun Interesting Facts

  • Her MBTI type is ENFP.
  • In the final round, her rank is 6th.
  • She extremely looks like BLACKPINK’s Jennie.
  • Boeun’s nicknames are “Ulsan Jennie”, “Baby Duck”, and “little Jennie”.
  • BLACKPINK is her role model.
  • Among CLASS:y members, she is the one and only one called as “queen of aegyeo“.
  • She has monolids.

CLASS:y Seonyou Profile

Name : Kim Seon-you (김선유)

Stage name : Seonyou (선유)

Birth date : March 20, 2008

Birth place : Gangneung, Gangwon-do, South Korea

Height : 160 cm (5’3″)

Weight : 43 kg

Position : Maknae, Main Rapper, Lead Dancer, Sub-vocalist.

Blood type : B

Zodiac : Pisces

Chinese zodiac : Rat

Nationality : Korean

Seonyou Facts

  • She is an ISFP.
  • Before joining My Teenage Girl, she participated in CAP-TEEN.
  • In My Teenage Girl, Seonyou got a place in the #2 ranked.
  • She is very anti-vegetables.
  • Her nicknames are “Baby Seon” and “Gun Egg”.
  • Malatang is her favorite food.
  • She has specialties such as skipping, cartwheels and skating.
  • Relaxing, shopping, sleeping, eating, singing, listen to music are her hobbies.

CLASS:y Pre Debut

We all know, CLASS:y is a group which formed after a survival variety show that made by MBC. Before officially debut as an “idol group”, every members were joined the competition that aired on November 28 to February 27, 2021. This seven members are entered the top 7 and had beaten 76 other contestant, at the end this 7 members managed to be winners and signed contract for 7 years with M25 and Universal Music Japan.

This variety show is special from other program, if we remember that in every group that formed by a variety show program, they would be did promotion and signed contract only for 2 years. Meanwhile, CLASS:y’s exclusive contract like K-pop group idol in general. To remember their performance during their pre debut days in My Teenage Girl program, here they are!

CLASS:y Debut

My Teenage Girl survival program ended on February 27, 2022, they revealed the final line-up and the 7 contestants successfully debut as CLASS:y. This first girl group of the survival show debuted on May 5, 2022, with their first mini-album Class Is Over with “Shut Down” as their main track.

Previously, this group opened their official social media on March 3, 2022, and then ranging from April 20 to 27, 2022, they released concept photos either from the group or even each member. CLASS:y is a group that consists of 2001-2008 members and the concept that they had is dreamy-girly as well as looks teenager.

On May 2, finally, they uploaded a teaser music video before they released on May 5 along with the album teaser. This MV already got over 1.9 Million viewers on YouTube and they made the hot debut stage through the weekly music program, M! Countdown on May 6, 2022. However, the title is “comeback”, not hot debut stage, because, on pre-debut days, they had released a pre-debut single titled “Surprise” in March 2022.

But don’t worry, if you want to see their performance after an official debut announcement, you can click the video below!

CLASS:y have planned that they will release a Japanese single version of “Shut Down” on June 22, 2022. So, you have to wait!

So, that’s all information everything about the new girl group which was formed by My Teenage Girl, namely CLASS:y. After reading this article, surely you immediately fall in love with this group and the members’ skills. So, what do you think about this group? Please kindly put the answer in the comments section.

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