LIGHTSUM

LIGHTSUM (라잇썸; debuted on Jun 10, 2021) is an eight-member South Korean girl group under CUBE Entertainment. A video with the logo and the name of the group was published on April 15, 2021. LIGHTSUM debuted on June 10, 2021.

LIGHTSUM PROFILE

Number of Members: 8

Members: Sangah, Juhyun, Huiyeon, Nayoung, Chowon, Jian, Yujeong, Hina

Genre: K-pop

Oldest Member: Sangah (born Sep 4, 2002)

Youngest Member (Maknae): Jian (born Nov 4, 2006)

Debut date: June 10, 2021

Label: CUBE Entertainment

LIGHTSUM is composed of eight members born between 2002 and 2006. Their names are: Sangah, Juhyeon, Huiyeon, Nayoung, Chowon, Jian, Hina, and Yujeong. The oldest member is Sangah (born Sep 4, 2002). The youngest member (maknae) is Jian (born Nov 4, 2006). Hina is the only foreigner; she was born in Japan. All the rest of the members are Korean.

LIGHTSUM POSITIONS

1. Sangah: lead dancer, rapper

2. Chowon: main vocalist

3. Nayoung: main vocalist, lead dancer

4. Hina: sub vocalist

5. Juhyeon: leader, main dancer, lead vocalist

6. Yujeong: sub vocalist

7. Huiyeon: sub vocalist

8. Jian: sub vocalist, rapper, maknae

Vocal Line: Chowon, Nayoung, Juhyeon, Hina, Yujeong, and Huiyeon.

Dance Line: Juhyeon, Sangah, and Nayoung.

Rap Line: Sangah and Jian.

LIGHTSUM AGE RANKING

Ranked from oldest to youngest (international age as of 2021):

LIGHTSUM HEIGHT RANKING

The height of LIGHTSUM members ranges from 155 cm (5’1”) to 171 cm (5’7”). The average height in the group is 163 cm (5’4”). The tallest member is Juhyeon with a height of 171 cm (5’7”). The shortest member is Nayoung with a height of 155 cm (5’1”). Juhyeon, Sangah, Chowon, and Jian are taller than the average height in the group. Yujeong, Huiyeon, Hina, and Nayoung are shorter than the average.

Ranked from tallest to shortest:

1. Juhyeon: 171 cm (5'7")

2. Sangah: 168 cm (5'6")

3. Chowon: 168 cm (5'6")

4. Jian: 166 cm (5'5")

5. Yujeong: 160 cm (5'3")

6. Huiyeon: 159 cm (5'3")

7. Hina: 158 cm (5'2")

8. Nayoung: 155 cm (5'1")

Tall line: Juhyeon, Sangah, Chowon, Jian.

Short line: Yujeong, Huiyeon, Hina, and Nayoung.

FUN FACTS AND TRIVIA

-LIGHTSUM will be CUBE Entertainment’s fifth idol group, following CLC, Pentagon, (G)I-DLE, and BTOB.

-LIGHTSUM will be the first group to debut from CUBE Entertainment since the debut of (G)I-DLE in May 2018 (three years prior).

-The oldest member of LIGHTSUM is Sangah (born Sep 4, 2002).

-The youngest member (maknae) of LIGHTSUM is Jian (born Nov 4, 2006).

-The leader of LIGHTSUM is Juhyeon.

-LIGHTSUM is the first group from Cube Entertainment to have all members born in the 21st century.

SOCIAL MEDIA

Facebook: LIGHTSUMOfficial

Instagram: cube_lightsum

Twitter: cube_lightsum

VLive: LIGHTSUM

Weibo: Cube_LIGHTSUM

Youtube: LIGHTSUM

MEMBER PROFILES

1. SANGAH

Stage Name: Sangah

Full Name: Yoon Sangah

Native Name: 윤상아

Birth Place: Korea

Birthday: Sep 4, 2002

Height: 168 cm (5'6")

Weight: 

Blood Type:

Zodiac: Virgo

FUN FACTS AND TRIVIA

-Age trivia: Sangah was 18-19 years old when she debuted with LIGHTSUM in 2021.

-Lookalike: Jennie (Blackpink).

-Position: rapper, lead dancer.

-She passed the auditions with multiple agencies: Kakao M, Yuehua, MLD, CJ ENM, J Planet, and Astory.

-She has an older brother.

-Compared to others in the group, she started training much later and was able to debut quickly. Because of that, she sometimes feels like she hasn't prepared enough.

<< see more facts >>

2. CHOWON

Stage Name: Chowon

Full Name: Han Chowon

Native Name: 한초원

Birth Place: Korea

Birthday: Sep 16, 2002

Height: 168 cm (5'6")

Weight: 50 kg (110 lbs)

Blood Type: B

Zodiac: Virgo

FUN FACTS AND TRIVIA

-Education: Hanlim Multi Art School. She graduated in 2019.

-She made her debut as an actress in the movie Bully Bad Guys (2020).

-In 2018, she is participated in the idol survival shows Produce 48. She was eliminated after placing 13th place and therefore missed to join the lineup for IZ*ONE. After the Mnet’s vote manipulation scandal came to light, it was revealed that Chowon would have scored top 12 had the votes not being manipulated.

-Her nickname during Produce 48 was Reversal Queen because rose to the top ranks after having placed 88th place in episode 3.

-She trained for many years and was very close to debuting several times.

-She also trained as an actor.

<< see more facts >>

3. NAYOUNG

Stage Name: Nayoung

Full Name: Kim Nayoung

Native Name: 김나영

Birth Place: Korea

Birthday: Nov 30, 2002

Height: 155 cm (5'1")

Weight: 43 kg (95 lbs)

Blood Type: O

Zodiac: Sagittarius

FUN FACTS AND TRIVIA

-Age trivia: Nayoung was 18 years old (international age) when she debuted with LIGHTSUM in 2021.

-She was a participant in the 2018 survival show Produce 48. She ranked 21.

-She is a former trainee from Banana Culture. She was planned to debut as part of a new girl group but their debut was cancelled in 2019.

-She was inspired to become an idol during the time BTS was becoming really famous. It was during her early trainee life when she saw BTS dancing very well on stage.

-She admires the group Brave Girls. She thinks that those who endure and go overcome struggles, become winners.

<< see more facts >>

4. HINA

Stage Name: Hina

Full Name: Hina

Native Name: 阳菜

Birth Place: Japan

Birthday: Apr 7, 2003

Height: 158 cm (5'2")

Weight: 40 kg (88 lbs)

Blood Type:

Zodiac: Aries

FUN FACTS AND TRIVIA

-Age trivia: Hina was 18 years old (international age) when she debuted with LIGHTSUM in 2021.

-MBTI: ESFJ.

-Position: sub vocalist

-She was born in Japan.

-When she was in Japan, she attended a dance academy that covered Kpop music.

-Soon after learning about Kpop, she started learning Korean language.

-Because Japanese is not her native language, sometimes she doesn't fully understand what her team members say. She tries to guess what they say based on context.

-She enjoys going to school and hanging out with people.

-She is a big fan of Twice and attended their concert several times.

-She loves mint chocolate and cake.

-Her favorite song from Twice is TT.

-She was inspired to become an idol after seeing Twice perform on stage when she was in junior high.

<< see more facts >>

5. JUHYEON

Stage Name: Juhyeon

Full Name: Lee Juhyeon

Native Name: 이주현

Birth Place: Korea

Birthday: Apr 8, 2004

Height: 171 cm (5'7")

Weight: 48 kg (106 lbs)

Blood Type: AB

Zodiac: Aries

FUN FACTS AND TRIVIA

-Age trivia: Juhyeon was 17 years old when she was announced as a member of LIGHTSUM in April 2021.

-She appeared in the music video for Young with Hui, Yeo One, Yuto, Kino, and Wooseok.

-She made an appearance in the music video for Always from Unit G.

-In 2017, when she was only 13 years old, she became a contestant in the survival show The Unit. She ranked 25.

-In 2018, she became a participant in the show Dancing High but was eliminated on episode 2.

-She is part of CUBE Entertainment’s trainee group called Cube Tree.

-She started dancing when she was in second grade in elementary school.

-She joined Cube Entertainment through an audition in January 2014.

-Role models: Hyuna, BoA.

-She wore braces while she was participating in The Unit.

 -She is intelligent despite her clumsy looks.

-She was quiet and timid when she was younger.

-At Doljabi (a fortune-telling ritual), the first item she grabbed was a pen. The second item as a gavel.

-She started learning cheerleading first with her friend and then followed her to join a cover dance team.

-She started her trainee life when she was very young so she makes it a point to remember the goals she had as a trainee whenever she works very hard.

-She has experience composing her own music. She would like to produce her own album in the future.

<< see more facts >>

6. YUJEONG

Stage Name: Yujeong

Full Name: Lee Yujeong

Native Name: 이유정

Birth Place: Korea

Birthday: Jun 14, 2004

Height: 160 cm (5'3")

Weight: 41 kg (90 lbs)

Blood Type: AB

Zodiac: Gemini

FUN FACTS AND TRIVIA

-Age trivia: Yujeong was 16 years old when she was announced as a member of LIGHTSUM in April 2021.

-Hobbies: playing the piano, dancing Kpop dances.

-Specialty: musicals.

-She is a former trainee of Stardom Entertainment and Fantagio Entertainment.

-She was a participant of the survival show Produce 48.

-She used cheerleading to help her overcome her shyness.

<< see more facts >>

7. HUIYEON

Stage Name: Huiyeon

Full Name: Oh Hui Hyeon

Native Name: 오희현

Birth Place: Korea

Birthday: Aug 1, 2005

Height: 159 cm (5'3")

Weight: 

Blood Type: O

Zodiac: Leo

FUN FACTS AND TRIVIA

-Age trivia: Huiyeon was 15 years old when she was announced as a member of LIGHTSUM in April 2021.

-Position: sub vocalist.

-She studied ballet, rhythmic gymnastics, and painting.

-She did figure skating. It was her mom who had suggested her to try figure skating.

-She has won several gold medals in figure staking at her elementary school.

-She attended music school and learned how to play the piano.

-She also attended academies to learn sining and dancing.

-She likes Ariana Grande and Taylor Swift.

-She was inspired to become an idol after her figure skating teacher recommended she audition for a Kpop agency.

<< see more facts >>

8. JIAN

Stage Name: Jian

Full Name: Kim Jian

Native Name: 김지안

Birth Place: Korea

Birthday: Nov 4, 2006

Height: 166 cm (5'5")

Weight:

Blood Type:

Zodiac: Scorpio

FUN FACTS AND TRIVIA

-Age trivia: Jian was 14 years old (international age) when she debuted with LIGHTSUM in 2021.

-Position: sub vocalist, rapper, maknae.

-She was a private trainee. Her name was not made public prior to her debut.

-She was the youngest female idol in Kpop at the time of her debut in 2021.

-Her friends say she is a bit odd.

-She can make friends easily.

-At her Doljabi (Korean first birthday), she grabbed money and a microphone.

-She really likes mics.

-She is shy. When she was little she was bright and active.

-She practiced Taekwondo for 2 years when she was in kindergarten.

-She has received a lot of awards: queen of confidence award, queen of posture award, filial duty award, and queen of positivity.

<< see more facts >>