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MASC Members Profile

MASC Members Profile: MASC Facts
MASC kpop
MASC currently consists of 3 members: Woosoo, Heejae, and LEE:ON. The group name ‘MASC’ is the abbreviation for “Masculine”, which means manliness. MASC debuted on August 18, 2016 under JJ Holic Media (which meanwhile changed its name to J Planet Entertainment). On October 18, 2020 it has been announced that MASC unfortunately disbanded.

MASC Fandom Name: MaBling
MASC Official Fan Color:

MASC Official Accounts:
Twitter: @winsmasc
Instagram: @masc_official_insta
Facebook: winsMasc
Youtube: MASCofficial

MASC Members Profile:

Stage Name: Woosoo (우수)
Birth Name: Woo Young Soo (우영수)
Position: Leader, Main Vocalist
Birthday: September 05, 1989
Zodiac Sign: Virgo
Height: 176 cm (5’9″)
Weight: 60 kg (132 lbs)
Blood Type: B
Nationality: Korean
Instagram: @w_youngsoo
Twitter: @wys1989
Youtube: WooSoo

Woosoo facts:
– He was born in Busan, South Korea.
– Woosoo has 1 older brother (Woosoo is younger by one year)
– He is a former member of E7.
– He is a composer of songwriting team ‘Golden Hind’.
– Specialty: High notes, Sing any Song in R&B Style,
– He won a badminton competition in Japan.
– Woosoo has the most clothes in the group.
– Woosoo loves football.
– He Has a dog named Tori
– Some of the football teams he likes includes Real Madrid and Liverpool. (Twitch)
– Woosoo Made 4 songs for MASC
– Woosoo produced a song for INFINITE and SPECTRUM (Twitch)
– Woosoo has already completed his military service
– Woosoo regularly streams on twitch
– Woosoo is friends with BLOCK B’s U-KWON.
– Woosoo, 26, A.C.E, and Heejae appeared in a k-drama named “The Miracle” (episode 4).
– He debuted as a soloist on June 30, 2020 with the single “The Rain”.
Show more Woosoo fun facts…


Stage Name: Heejae (희재)
Birth Name: Yoo Hee Jae (유희재)
Position: Main Rapper, Lead Vocalist
Birthday: February 22, 1994
Zodiac Sign: Pisces
Height: 175 cm (5’9″)
Weight: 62 kg (137 lbs)
Nationality: Korean
Instagram: @heeeeeejae

Heejae facts:
– Education: KayWon High School of arts, Seoul Institute of the Arts
– Heejaes Favourite colour is Black (London fanmeet)
– Heejae said that he likes dogs but he’s also scared of them because when he was kid, big dog bit him.
– He was the main actor of “I am Vampire” directed by 26.
– He was the main actor of Sugarbowl’s “Leaned” MV.
– Heejae, Woosoo, 26 and A.C.E appeared in a k-drama named “The Miracle” (episode 4).
– On May 3, 2023 it was announced that Heejae and LEE:ON (Ireah) joined PCS Entertainment.
– Him and LEE:ON (Ireah) will be re-debuting in a duo, SEVENUS on July 31, 2023.


Stage Name: LEE:ON (formerly known as Ivan or Ireah (이레))
Real name: Lee Jonghee (이종희)
Position: Lead Vocalist
Birthday: March 25, 1994
Zodiac: Aries
Height: 174 cm (5’9″)
Weight: 63 kg (139 lbs)
Instagram: @leeon__ms
Youtube: 리온 LEE:ON

LEE:ON facts:
– Has a brother.
– Specialty: composing
– His hobby is cooking.
– His favorite foods are: sushi & all the edible food
– Has aquaphobia (fear of water) and acrophobia (fear of heights). (“Pops in Seoul”)
– He likes dogs, he would like to have a Pomeranian.
– His motto is: “A different perspective changes the world.”
– He joined Masc on 12 September 2017.
– On May 3, 2023 it was announced that LEE:ON and Heejae joined PCS Entertainment.
– Him and Heejae will be re-debuting in a duo, SEVENUS on July 31, 2023.

Former Members:

Stage Name: Moonbong (문봉)
Real Name: Song Moonbong (송문봉)
Position: Vocalist, Visual, Maknae
Birthday: July 8, 1998
Zodiac Sign: Cancer
Height: 174 cm (5’9″)
Instagram: @door.b
Twitter: @doorb7887
Youtube: Moonbong

Moonbong facts:
– Moonbong has 5 family members including his mom, dad and 3 siblings
– Moonbong enjoys makeup
– Specialty: singing
– His hobbies are: Watching movies, shopping
– His favorite foods are: Meat, tonkatsu, spaghetti and chicken
– His motto is: “Don’t regret anything!”
– He joined Masc on 12 September 2017.
– He left sometime in 2020.
– He is going to be under JN Entertainment’s new boy group.


Stage Name: 26 / Yiryuk (이륙)
Birth Name: Kim Ji Hoon (김지훈)
Position: Rapper, Dancer
Birthday: February 22, 1990
Zodiac Sign: Pisces
Height: 178 cm (5’10″)
Weight: 58 kg (128 lbs)
Blood Type: A
Nationality: Korean
Instagram: @j1hoon_k
Twitter: @KayJi90

26 facts:
– Education: Directing at Seoul Institute of the Arts
– He was a choreographer of former street dancer.
– He directed girl group Veloce’s MVs, indie films, commercials and web-dramas.
– Specialty: A certified sports massage therapist.
– In middle school he was a track and field athlete.
– 26, Woosoo, A.C.E, and Heejae appeared in a k-drama named “The Miracle” (episode 4).
– On July 30, 2018, he revealed on his Instagram that he also left MASC, and that he chooses the path of becoming a film director.
– 26 posted on his instagram that he is in a relationship.


Stage Name: A.C.E (에이스)
Birth Name: Kim DaeSung (김대성)
Position: Rap
Birthday: May 11, 1990
Zodiac Sign: Taurus
Height: 176 cm (5’9″)
Nationality: Korean
Instagram: @aceseaaiite

A.C.E facts:
– He was born in Seoul, South Korea.
– He is a member of the underground rap crew “Rassay Sunz”.
– He acted in the SBS Drama ‘One Warm Word Behind’ (2014).
– He doesn’t like to move, and hates annoying and loud things.
– Specialty: Wrote the rap for “Strange” and other songs.
– A.C.E, Woosoo, 26 and Heejae appeared in a k-drama named “The Miracle” (episode 4).
– On 28 July 2018, he left a message on Instagram, confessing that after the incident with Chibin, he took full responsibility for his actions by leaving the group and ending his contract with the company.


Stage Name: Doeun (도은)
Real Name: Kim Doeun (김도은)
Birthday: June 4, 1993
Zodiac Sign: Gemini
Height: 183 cm (6’0″)
Weight: 75 kg (165 lbs)
Instagram: @k_doeun_
Youtube: DOEUNI__

Doeun facts:
– Specialty: Taekwondo, Japanese
– His hobbies are: Drawing, playing the piano, playing soccer
– His favorite foods are: chicken breast, eggs, bread and snacks
– His motto is: “Be always modeste, but don’t be servile!”
– He joined Masc on 12 September 2017.
– In October 2018 it has been announced that he left the band due to personal reasons.

Stage Name: Chibin (치빈)
Real Name: Jeon Chibin (전치빈)
Birthday: January 14, 1998
Height: 176 cm (5’9″)
Weight: 57 kg (126 lbs)
Zodiac Sign: Capricorn
Instagram: @grambin_

Chibin facts:
– Specialty: Playing the piano and running
– His hobbies are: watching movies alone and walking on a dark road once in a while
– His favorite foods are: pizza, chicken and french fries
– His motto is: “Let’s stay true to our feelings!”
– He joined Masc on 12 September 2017.
– On July 25, 2018, he left a post on his Instagram confessing that 5 months ago, he was brutally attacked and injured by one of his band members. (A.C.E)
– On July 30, 2018 MASC’s agency announced that Chibin (who has been resting as he receives treatment for his mental trauma) stated that he finds it difficult to continue activities as MASC.
– He decided to prepare for college and change his career path to acting.

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Who is your MASC bias?

Latest Korean comeback:

(Special thanks to ✵moonbinne✵, Mimi Tran, Maria Eduarda Vilela Franco, gen, Xaizhun, Breanna Swallow, ems, taetetea, Alexia-Gabriela Badea, Jazmyn Van Rensalier, its_thefizzright?, Sanajaff, Avery, Elina, Victoria, Emna Ben El Kadhi, Cassiopeia, Sonata Dash, Kellee Ann McAdams, 송수연, andredrw, SAAY, Happy Virus, Casey, Diana Nguyen, Nayuki, kas, cosmic rays, martinka, DJ, Midge)

Who is your MASC bias? Do you know more facts about them? Feel free to comment below. It can help new fans find more info about them. 🙂