Group Members

Moonbyul (MAMAMOO) Profile, Bio, & Facts

Moonbyul (MAMAMOO)

Moonbyul (문별) is a South Korean singer, rapper and a member of the girl group MAMAMOO under RBW Entertainment. She made her her solo debut on May 23, 2018, with the digital single “Selfish“.

Moonbyul (MAMAMOO) Profile

Stage NameMoonbyul (문별)
Birth NameMoon Byul-Yi (문별이)
OccupationRapper, Songwriter
BirthdayDecember 22, 1992
Active Years2014–present
Age31 (in 2024)
Zodiac SignCapricorn
Height165 cm (5’5″) (Official) | Actual Height: 163.4 cm (5’4″)
Weight45 kg (99 lbs)
Blood TypeB

Moonbyul (MAMAMOO) Facts:

Early Life

– Moonbyul was born in Bucheon, South Korea.
– She went to Bucheon Buk Elementary School and Somyeong Girls’ Middle School.

Personal Life

– She has 2 younger sisters (Seulgi, born 1996, and Yesol, born 2004).
– She graduated from Wonmi High School.
– Her stage name, Moonbyul, is formed by combining her surname ‘Moon’ and her birthname ‘Byul-yi’.
– If she could be with only one person, she would rather spend her whole life with someone who loves her over someone who she loves. (EXTREME BALANCE GAME)
– She feels the most comfortable disclosing herself to Solar. (Naver Vibe)
– She likes to sleep and watch tv during her day off. 
– She is close to Seulgi of Red Velvet.
–  She often comes to Solar’s house when she is not at home but doesn’t want Solar visiting her house because of privacy. Lol
– She is a huge fan of Taeyeon (SNSD) and she attended SM Academy because of her. (Amazing Saturday)
– She prefers a boyfriend who is crazy about music over who is crazy about rock music. (solarsido)
– She likes to travel with her family or close friends.
– She loves to talk a lot and relieves her stress by talking. (Naver Vibe)

– She has 6 tattoos on her body.
– When she is at home, she can go without saying anything all day. (Allure Korea)
– She was roommates with Wheein.
– Moonbyul’s ideal type is Gong Yoo and guys with broad shoulders.
– She goes to Solar for relationship advice because Solar gives her straightforward answers. (Entertainment Weekly Ep 1754)
– Her bag includes her sunglasses, glasses, BCAA amino water, necklace, multivitamins, Benetint, lip balm, earpods, portable charger, tweezers, gum, perfume, wallet, and hair ties. (What’s In Your Bag?)
– She has a habit of spraying a lot of perfume as if they are a part of her body.
– Her fashion role model is the actress Lee Chung Ah.  
– She wears glasses for astigmatism. (What’s In Your Bag?)
– She has four pet dogs named Daebak, Haengeoon, Keongang, and Janggu.
– She is part of a 92-liner group chat with Hani (EXID), Jin (BTS), Ken (VIXX), and Sandeul (B1A4).


– Moonbyul is the rapper in MAMAMOO.
– She initially auditioned to be a vocalist but later became a rapper.
– She wrote rap lyrics for “Piano Man”.
– She created the choreography for “Mr. Ambiguous.”
– She participates in writing rap lyrics for group songs.
– She is one of the most credited female idols of her generation and is credited for songwriting over 100 songs.
– She appeared on “King of Masked Singer” as Swan.
– She participated in the “Idol Drama Operation Team” TV program, debuting with Girls Next Door on July 14, 2017.
– She is in the group’s subunit Mamamoo+.
– She hosts her talk show ‘Studio Moon Night’.

Likes & Dislikes

– One thing she hates is her messages being left on read. (솔라시도)
– Her favorite drama is ‘Coffee Prince’. (SELF-ON KODE)
– Her favorite perfumes are Chanel’s Chance Eau Fraiche and CREED’s Aventus Eau de Parfum.
– Her favorite body lotion is the THALION Velvet Body Butter. (ELLE KOREA)
– She always takes ‘Regina Royal Jelly’, Orthomal, ‘Lactobif Probiotics’ and ‘AGmal’ for multivitamins.
– She likes watching dramas.
– She loves listening to band music. (1883magazine)
– She loves to wear unisex scents. (ELLE KOREA)
– She prefers sushi over ramyeon.


– Her rap stage name is ‘Moonstar’.
– Her nickname is ‘Conservative Moon’ since she doesn’t like showing too much skin.
– She is nicknamed “Black Hole” because she tends to sweat a lot.

Personality & Habits

– She likes to act cheesy since she feels being the same old is boring.
– She hates planning trips and prefers to follow others around. (솔라시도)
– She doesn’t like feeling uncomfortable for long so she tries to fix the problems as soon as possible. (Allure Korea)
– Moonbyul said that when she is having a hard time, she doesn’t call her family and instead calls Solar as even being together with her is healing. (CeCi interview 2017)
– She considers herself a workaholic. (Naver Vibe)
– She said it takes around 30 mins to get close to someone she just met.

Major Works

– Her popular songs include “SELFISH (ft. Seulgi of Red Velvet), “Shutdown (ft. Seori)” and “Eclipse”.


– She won the ‘Most Influential Live Streaming Show DJ’ award at the Brand Customer Loyalty Award in 2022.

Instagram: mo_onbyul
Weibo: mo_onbyul1da
Youtube: 문별이다 moonbyul2da
TikTok: moonbyul_2da

Streaming Platform Links
Genie | Spotify | Bugs | Melon | Apple Music | Deezer

Moonbyul Photos

Note: How did you get to know Moonbyul? Mention your story in the comments section and also share more facts with us if you know!

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Lilian Chen

Yo! I'm Lilian, an Ahgase and a curious wordsmith on a never-ending quest for knowledge. Don't hesitate to spot any slip-ups in my work and feel free to reach out with additional facts & insights! ^^

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