Moonbyul

According to the Korea Music Copyright Association, she has songwriting credits on over 100 songs.

Moonbyul studied at Bucheonbuk Elementary School, Somyong Girls' Middle School and Wonmi High School. The recorded working language is Korean, Japanese and sign language. Subjects and genres recorded for the work are K-pop, hip-hop, jazz and pop. Residence is recorded at Bucheon.

• Name — Moonbyul • Birth Name — Moon Byul-yi • Born — 22 December 1992 • Birthplace — Bucheon, South Korea • Occupation — * Rapper • singer • songwriter Moon Byul-yi (born December 22, 1992), known professionally as Moonbyul (stylized as Moon Byul), is a South Korean rapper, singer and songwriter under RBW Entertainment. She is a member of the South Korean girl group Mamamoo and its sub-unit Mamamoo+. Moonbyul made her solo debut in May 2018 with the digital single Selfish. According to the Korea Music Copyright Association, she has songwriting credits on over 100 songs.

Moon Byul-yi was born on December 22, 1992, in Bucheon, South Korea. In 2011, she was accepted into the Paekche Institute of the Arts, where she studied media music and vocals. During her middle school years, she became interested in singing after watching TVXQ's performance of "Rising Sun". She decided to pursue singing after receiving positive feedback during a school performance. She also cited Girls' Generation and their leader Taeyeon as early influences on her career aspirations, and attended SM Entertainment's academy in an attempt to follow in her footsteps. She graduated from Wonmi High School, and later from the Paekche Institute of the Arts majoring in media, music and vocals.

Moonbyul's stage name combines her family name "Moon" with her given name "Byul-yi". Her given name "Byul-yi" means star in Korean. According to Moonbyul, she has stated that her father chose the name "Byul-yi", meaning star, inspired by the night of her birth. She uses the alias "Moonstar" as her rap name, which directly translates the meaning of her Korean name into English. Since her debut, she has incorporated the alias "Moonstar" in several of her lyrics, including in collaborations with other artists. The motifs of the moon and stars are often associated with her as well.

Moonbyul debuted as the main rapper and performer of Mamamoo on June 18, 2014, with the single "Mr.Ambiguous."The group became known for their vocal-centered musical style, according to Korean media outlets. She joined her label RBW in 2011. Despite originally passing her audition as a vocalist and training as one, it was suggested to her by their record producer that she switch to becoming a rapper, as the group needed a rapper. Although she was rather unfamiliar with the genre and was only informed six months prior, she debuted with Mamamoo on June 19, 2014. According to the group's WAW documentary, Moonbyul also specialized in freestyle dance and hip-hop, and would show up to monthly evaluations with self-made routines she choreographed herself.

• Illustration — Moonbyul in 2015 Moonbyul debuted as a member of the girl group Mamamoo on June 19, 2014, with the release of their first extended play (EP) Hello. As one of the members in charge of performance, she contributed to the choreography of the group's debut track, the lead single "Mr. Ambiguous". Since the release of their second extended play Piano Man in November 2014, Moonbyul has co-written many of the group's lead singles, including the entirety of her own raps. In November 2016, Mamamoo performed at the 37th annual Blue Dragon Film Awards, one of the most prestigious film awards in South Korean entertainment industry. They put a creative twist on their song "Decalcomanie" by including adlibs that referenced famous quotes and well-known lines from popular movies that year. In particular, Moonbyul's line "Jung Woo-sung, if I drink this in one shot, will you go out with me?", the moment received attention online and was widely shared on social media, contributing to the song's chart performance, along with his reaction that was captured on screen. The moment went viral in South Korea, garnering 1.5 million views within a day. The group and their song "Decalcomanie" gained a surge in popularity and rose to the top of real-time music charts, becoming a hit domestically. In June 2017, Moonbyul released her first solo track, "Love & Hate", as part of Mamamoo's fifth EP, Purple. She wrote the song based on her own past relationship, conveying the heartbreak of feeling alone even while the other person was there. Her interpretation of the bittersweetness of first love, is reflected in her dancing in the performance video as well.

• Illustration — Moonbyul performing at a festival in 2018 In May 2018, Moonbyul made her solo debut with the digital single "Selfish," featuring Seulgi of Red Velvet. She released her first EP, Dark Side of the Moon, on February 14, 2020. Rolling Stone described the album as "surprisingly expansive in the genres it explores", experimenting with a range of genres including jazz, blues, ballads and hip-hop, while the lead single "Eclipse" is described as a "powerful blend of rock, synth and trap". Billboard commended the release for continuing Mamamoo's legacy of relaying different ideas of feminine strength through their music, adding praise to Moonbyul for being "Billboard noted her use of diverse genres and performance styles". Upon release, the album charted at number one on the iTunes Top Album Chart in four countries, and ranked within the Top 5 in ten regions worldwide. Its lead single "Eclipse" also peaked at number fourteen on Billboard World Digital Song Sales chart for the week of February 14, 2020. Dark Side of the Moon sold 66,000 copies in the first week of its release alone and the album reportedly sold 66,000 copies in its first week, placing high on the Gaon Chart.

In July 2020, Moonbyul was appointed as a host for the weekly radio program Avengirls on Naver NOW. Upon garnering high broadcast ratings, she launched Studio Moon Night, her own flagship talk show, on February 15, 2021. With this live broadcast program that aired thrice weekly with new guests appearing each episode, she became the first Mamamoo member to venture into hosting and having a program named after her. She also composed and wrote the theme song for the show herself. Studio Moon Night was renewed for a second season in March 2022 after marking its first anniversary of being on air. In May of the same year, Moonbyul was awarded at 2022 Korea Brand Customer Loyalty Index for her work as a host in the live broadcasting category. The Brand Customer Loyalty Awards is held annually by the Korean Consumers Council to recognize the brands and personalities that have the most influence on popular culture and society, as determined through consumer research in association with the U.S. consulting firm Brand Keys. In October 2021, she joined the cast of SBS entertainment program Kick a Goal. Moonbyul scored her first ever goal on the August 24th, 2022 episode to help her team FC Top Girl advance to the Super League, which recorded the high viewership ratings of 9.6% per minute. On December 20, 2021, Moonbyul launched her YouTube channel, "moonbyul2da". In the lead-up to her third EP, Moonbyul pre-released two tracks; the single "G999", featuring fellow rapper Mirani, on December 13, 2021, and single "Shutdown", featuring Seori, on December 30, 2021.

On January 19, 2022, Moonbyul released her third EP, 6equence. The album depicts a chronological sequence of six scenes of a romantic relationship from meeting to parting through its six tracks, reaching the climax of obsession with house-based title track "Lunatic", and is designed to be enjoyed "as if watching a short film". Moonbyul stated in the run-up to 6equences release that she hopes to challenge the binary view of gender through her music, reflected in her androgynous musical style and gender-neutral lyrics. From March 5–6, 2022, Moonbyul held her second solo concerts Director's Cut: 6equence over two days. On April 28, 2022, she released her fifth EP, C.I.T.T (Cheese in the Trap), containing punk rock lead single of the same name, as well as acoustic R&B track "My Moon", self-composed by Moonbyul as a song for her fans. The Album's sales of C.I.T.T (Cheese in the Trap) surpass 100,000 records sold with a single album. Moonbyul held two shows from her first overseas solo concert Director's Cut: Japan Special Live in Osaka, Japan on August 20, 2022. From August to November 2022, Moonbyul participated in and won the JTBC survival program The Second World, a competition where rappers from K-pop girl groups engaged in a vocal performance contest. In the first round, she performed her own arrangement of Day6's Congratulations, receiving a score of 2,000 points and ranking first. She secures top scores in multiple rounds. She ultimately won first place in the finale, and the phrase "어우문" (an acronym meaning "Moonbyul is going to win anyway") gained popularity in reference to her strong performance during the show. On December 22, 2022, Moonbyul released the special single album The Present, featuring the lead single Present, described as a funk-based R&B track. The album marked her sixth solo release and included songs such as A Miracle 3 Days Ago and Chemistry.

• Illustration — Moonbyul performing at 'MUSEUM: An Epic of Starlit' world tour. On January 7, 2023, Moonbyul performed at the 37th Golden Disc Awards, following her victory in the competition show "The Second World", performing her songs "On My Way" and "Comma". Moonbyul joined the judging panel of JTBC's boy group survival program Peak Time in February 2023, replacing Mino of Winner. On April 29, Moonbyul was invited to perform at the Japanese edition of the Chimac Festival, held at the Expo Commemoration Park in Osaka, Japan. This marked her debut appearance as a solo artist in a music festival. On February 20, 2024, Moonbyul released her first studio album Starlit of Muse, featuring the lead singles "Touchin&Movin" and "Think About". The album sold over 100,000 copies in its first week, according to [Gaon/Hanteo]. The 12-track album reached first place on the iTunes Top Albums Chart in ten different regions and sold over 100,000 copies in its first week. Moonbyul embarked on her first solo world tour, Museum: An Epic of Starlit with shows in Seoul, Taipei, Singapore, Hong Kong, Kaohsiung, Osaka, Tokyo and Macau.

In addition to her artistic endeavours, Moonbyul has been involved in various charitable activities, she has participated in several charitable activities.

• Title — Details — Peak chart positions — Sales • KOR • Starlit of Muse — * Released: February 20, 2024 * Label: RBW * Formats: CD, digital download, streaming — 5 — * KOR: 119,871

• Title — Details — Peak chart positions — Sales • KOR • Dark Side of the Moon — * Released: February 14, 2020 * Label: RBW * Formats: CD, digital download, streaming — 2 — * KOR: 77,201 • 6equence — * Released: January 19, 2022 * Label: RBW * Formats: CD, digital download, streaming — 5 — * KOR: 88,607 • Laundri — * Released: August 20, 2025 * Label: RBW * Formats: CD, digital download, streaming — 5 — * KOR: 79,029

• Title — Details — Peak chart positions — Sales • KOR • 門OON — * Released: May 29, 2020 * Label: RBW * Formats: Kihno, digital download, streaming — 7 — * KOR: 36,929 • Starlit of Twinkle — * Released: August 21, 2024 * Label: RBW * Formats: LP, digital download, streaming audio — 17 — * KOR: 9,837

• Title — Details — Peak chart positions — Sales • KOR — JPN • Selfish — * Released: May 23, 2018 * Label: RBW * Formats: Kihno, digital download, streaming — — — — • C.I.T.T (Cheese in the Trap) — * Released: April 28, 2022 * Label: RBW * Formats: CD, digital download, streaming — 2 — — — * KOR: 110,728 • The Present — * Released: December 22, 2022 * Label: RBW * Formats: CD, digital download, streaming — 4 — — — * KOR: 33,409 • Aurora — * Released: February 5, 2025 * Label: RBW * Formats: CD, digital download, streaming — — — 7 — * JPN: 5,330 • Rev — * Released: March 25, 2026 * Label: RBW * Formats: CD, digital download, streaming — 13 — — — * KOR: 25,281

• Title — Year — Peak chart positions — Album • KOR — KOR Billb. — JPN — US World • "Selfish" (feat. Seulgi) — 2018 — 84 — 82 — — — — — Selfish and Red Moon • "Weird Day" (낯선 날) (feat. Punch) — 2020 — 96 — 69 — — — — — Dark Side of the Moon • "Eclipse" (달이 태양을 가릴 때) — 140 — 84 — — — 14 • "Absence" (부재) — — — — — — — 12 — 門OON • "G999" (feat. Mirani) — 2021 — — — — — — — — — 6equence • "Shutdown" (머리에서 발끝까지) (feat. Seori) — — — — — — — — • "Lunatic" — 2022 — — — — — — — — • "Trying to Say Good-Bye" (서툰 이별을 하려해) — 144 — — — — — — — Non-album single • "C.I.T.T (Cheese in the Trap)" — — — — — — — — — C.I.T.T (Cheese in the Trap) • "Touchin&Movin" — 2024 — — — — — — — — — Starlit of Muse • "Think About" — — — — — — — — • "Is This Love?" (내 친구의 친구 얘기인데) — — — — — — — — — Starlit of Twinkle • "Hoshiakari" (ほしあかり) — 2025 — — — — — 7 — — — Aurora • "Icy Bby" — — — — — — — — — Laundri • "Good Byes And Sad Eyes" — — — — — — — — • "S.O.S" — — — — — — — — • "Hertz" — 2026 — — — — — — — — — Rev • "—" denotes releases that did not chart.

• Title — Year — Peak chart positions — Sales — Album • KOR • "Dab Dab" (with Hwasa) — 2016 — 69 — * KOR: 31,040 — Memory • "Promise U" (with Solar) — 2021 — 172 — rowspan="2" — REVIBE Vol.1 • "Bada Boom" (with Solar, Mismolly and Turns) — 2022 — — — Street Dance Girls Fighter (SGF) Special • "—" denotes releases that did not chart.

• Title — Year — Peak chart positions — Sales — Album • KOR • "Nothing" (U Sung-eun feat. Moonbyul) — 2015 — 16 — * KOR: 128,199 — 2nd Mini Album • "Happy Now" (HA:TFELT feat. Moonbyul) — 2019 — — — rowspan="5" — rowspan="5" Non-album singles • "Say Yes" (Punch feat. Moonbyul) — 2020 — 193 • "Greedyy" (JeA feat. Moonbyul) — — • "The Lady" (Bumkey feat. Moonbyul) — 2021 — 135 • "Me Without You" (너 없는 난) (Xydo feat. Moonbyul) — — • "Star" (AleXa feat. Moonbyul) — 2022 — — — KOR: 3,922 — Girls Gone Vogue • "—" denotes releases that did not chart.

• Title — Year — Peak chart positions — Sales — Album • KOR • "Deep Blue Eyes" (as Girls Next Door) — 2017 — — — * KOR: 16,514 — Idol Drama Operation Team OST • "Half of Half" (반의 반) (with Gaho) — 2021 — — — Hanyang Diary OST • "—" denotes releases that did not chart.

• Title — Year — Peak chart positions — Sales — Album • KOR — KOR Hot • "Like Yesterday" (어제처럼) (with Solar) — 2015 — 54 — * KOR: 33,185+ — Two Yoo Project Sugar Man • "Love and Hate" (구차해) — 2017 — 51 — 88 — * KOR: 61,384 — Purple • "Mirror" — 2020 — — — — — rowspan="5" — Dark Side of the Moon • "Moon Movie" — — — — • "Iljido" — — — — • "Snow" (눈) — — — — • "My Moon" (반달) — 2022 — — — — — C.I.T.T (Cheese in the Trap) • "Intro: WWUD (What Would You Do?)" — 2024 — — — — — — — Starlit of Muse • "Like A Fool" — — — — — — • "Attention Seeker" — — — — — — • "Nolto" (feat. Hanhae) — — — — — — • "Timeline" — — — — — — • "After Sunset" (그런 밤) — — — — — — • "Dark Romance" — — — — — — • "Gold" — — — — — — • "Memories" (feat. Onewe) — — — — — — • "Without" (겁이나) — — — — — — • "—" denotes releases that did not chart.

• Year — Title — Role — Ref. Reference(s) • 2015 — Start Love — Yoo Na-young

• Year — Title — Role — Notes — Ref. Reference(s) • 2017 — Idol Drama Operation Team — Cast member — Episodes 1–8 • Beer Love Trip — Episodes 1–13 • 2018 — King of Mask Singer — Contestant — Episode 179 as "Swan" • 2019 — In Sync — Episodes 1–4 • 2020 — Idol Star Dogs Championships — Special Chuseok (Won) • 2021–2022 — Kick a Goal — Cast Member — Season 2–3 • 2022 — The Second World — Contestant — 1st placer • 2023 — Peak Time — Judge

• Year — Title — Role — Ref. Reference(s) • 2020–2021 — Avengirls — DJ • 2021–2022 — Studio Moon Night

Museum: An Epic of Starlit (2024) • Date — City — Country — Venue • March 23, 2024 — Seoul — South Korea — KBS Arena • March 24, 2024 • April 7, 2024 — Taipei — Taiwan — Taipei International Convention Center • April 13, 2024 — Singapore — Capitol Theatre • April 19, 2024 — Hong Kong — China — Macpherson Stadium • April 20, 2024 • May 4, 2024 — Kaohsiung — Taiwan — Kaohsiung Music Center • May 5, 2024 • May 8, 2024 — Osaka — Japan — Zepp Namba • May 10, 2024 — Tokyo — Zepp DiverCity • August 3, 2024 — Macau — China — Broadway Theatre

In the live broadcasting category at the 2022 Brand Customer Loyalty Awards, Moonbyul has received recognition.

Name of the award ceremony, year presented, category, nominee of the award, and the result of the nomination • Award ceremony — Year — Category — Nominee / Work — Result — Ref. Reference(s) • Brand Customer Loyalty Award — 2022 — Most Influential Live Streaming Show DJ — Moonbyul • Korea Grand Music Awards (KGMA) — 2026 — Artist of May — Solo (Female) — Moonbyul • Melon Music Awards — 2017 — Hot Trend Award — "Deep Blue Eyes" (as Girl's Next Door)