| Giuk | |||||||
| Alias: | CyA (키아) (2015–2023) | ||||||
| Birth Date: | 24 January 2000 | ||||||
| Birth Place: | Suwon, Gyeonggi-do, South Korea | ||||||
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Lee Giuk (born January 24, 2000), known mononymously as Giuk and formerly known by the stage name CyA, is a South Korean musician, rapper, songwriter, and producer. He is the bassist and rapper of the South Korean alternative rock band Onewe (formerly known as M.A.S 0094 or MAS). He made his solo debut on April 20, 2023, releasing his first extended play (EP) with the lead single "Time Machine (2100)".[1] His second solo EP Rise Waves was released seven months later on November 15, 2023, with the lead single "Scratch".[2]
In 2015, Giuk formed the band M.A.S 0094 with his four bandmates and they originally performed cover songs. He got his first writing credit through KOMCA on the band's first original single, "Butterfly, Finding Flower", released on August 13.[3] He would continue to participate in the band's songwriting, and also started composing songs, with the singles "Feeling Good" and "Starlight." He made his official debut with M.A.S 0094 on The Show on August 2, 2016 with the band's performance of their song "After 15 Seconds".[4] [5]
On December 12, Giuk featured in the soundtrack "Promise" by Donghyun of Boyfriend for The Miracle OST Part.2.[6]
On June 1, 2017, he signed with RBW Entertainment as part of M.A.S 0094, and the band's name was shortened to MAS.[7] In October, Giuk participated in the survival show The Unit, auditioning with the other members of MAS, but they competed individually. He was eliminated in the 7th episode, placing 59th.[8]
As a member of MAS, Giuk used the stage name CyA, and he continued to use this name when MAS re-branded and re-debuted under the name "Onewe" in June 2018.[9]
Giuk produced and featured in "Crazy & Crazy (Prod. CyA)" for labelmate Oneus' debut EP Light Us which was released on January 9, 2019.[10]
Giuk officially made his re-debut with Onewe on May 13, with the release of their digital single album titled 1/4.[11] Giuk took lead on writing and composing the song "Ring on my Ears" for the album, for which a music video was released on May 15.[12] He then made his debut in Japan as a member of Onewe with their first Japanese single album Reminisce About All on June 7.[13]
While continuing to participate in Onewe, Giuk also continued to write music for other groups. In 2020, he co-wrote, composed and arranged "Dizzy" for Oneus' fourth EP Lived which was released on August 19.[14] In 2021, Giuk he co-wrote the lead single "Zombie" for Purple Kiss' second EP Hide & Seek and featured in the music video.[15] He also acted in a main role alongside Purple Kiss member Goeun in the group's story films for the promotion of their following EP.
On March 9, 2023, RBW Entertainment announced that Giuk will no longer use the stage name CyA, and now uses his legal name, Giuk, for all official activities, including as a member of Onewe and his solo activities as an artist and producer.[16]
On April 8 and 9, Giuk held his first solo concert Prologue: Turn Over in anticipation of his solo debut.[17] Giuk officially made his solo debut on April 20, releasing his first EP with the lead single "Time Machine (2100)". On June 6, he held an encore concert Epilogue: Turn Over.[18]
He wrote the lyrics and composed for the single "Save Me" for Mamamoo+ which was released on July 18 and included in the duo's first EP Two Rabbits released in August.[19] He also co-wrote another song for labelmates Purple Kiss, titled "Mistake", and released in September as part of the group's first single album Festa.[20] Giuk is the featured artist for the title track "A Girl's Panorama" from YongYong's first full-length album MyMy which was released on November 9.[21]
On November 11, he held a solo concert entitled "Flight1112".[22] Giuk released his second solo EP Rise Waves on November 15, with the lead single "Scratch".
Following the military discharge of members Yonghoon and Kanghyun, Onewe returned with their third EP on April 17, 2024, resuming promotions through music broadcasts and various festivals and concerts.[23] In addition to his promotions with Onewe throughout the year, Giuk featured in the singles "Back To You" by Aden, released on July 30, and "You Don't Love Me" by Divine, released on October 2, 2024.[24] [25]
| Title | EP details | Peak chart positions | Physical sales | |
|---|---|---|---|---|
| KOR [26] | ||||
| 56 | KOR: 7895[27] | ||
| Rise Waves |
| 33 | KOR: 6643[28] |
| Title | Year | Peak chart positions | Album | ||
|---|---|---|---|---|---|
| KOR DL [29] | |||||
| "Time Machine (2100)" (제0호선 시간역행) | 2023 | — | |||
| "Scratch" (내 영혼에 낸 Scratch) | 179 | Rise Waves | |||
| "—" denotes releases that did not chart or were not released in that region. | |||||
| "A Girl's Panorama" | 2023 | MyMy |
|---|---|---|
| "Back To You" (오늘 또 내일) | 2024 | rowspan="3" |
| "You Don't Love Me" (틀린 말없이) | ||
| "You & Me" (너 하고 나) | 2026 |
| Year | Title | Role | Notes | Ref. | |
|---|---|---|---|---|---|
| 2017 | Contestant | Episode 1-7 | |||
| 2020 | Good Girl | Invited audience | Episode 8 | ||
| 2021 | Mama The Idol | Invited audience | Episode 1-2, 4-5 | ||
| 2022 | Great Seoul Invasion | Contestant | Episode 1-8 | [30] |
| Year | Song | Artist | Album | Label | Credited | Ref |
|---|---|---|---|---|---|---|
| 2022 | "Rockstar" | RARE | Rareness | Bass | [32] | |
| "Congratulations" | Moonbyul | Studio JAMM, Showplay | Bass | [33] | ||
| 2024 | "Like a Fool" | Starlit of Muse | RBW | Bass |
Giuk is the main writer and composer for his solo releases and co-writes/produces the vast majority of Onewe's output alongside the other members, as well a writing and producing for other artists. As of January, 2026, the Korea Music Copyright Association (KOMCA) has 126 songs listed under his name. All credits adapted from KOMCA, unless stated otherwise.[34]
| Indicates single release |
| Song | Artist | Album | Label | Lyrics | Music | |||
|---|---|---|---|---|---|---|---|---|
| Credited | With | Credited | With | |||||
| 2015 | "Butterfly, Find a Flower" (나비, 꽃을 찾다) | M.A.S 0094 | Feeling Good Day | Modern Music | Jeon Dawoon, Yoon Hyeoju, Jang Yoonseo | |||
| 2016 | "Feeling Good" | M.A.S 0094 | M.A.S 0094, Jeon Dawoon | |||||
| "Starlight" (별보다 빛나는) | Make Some Noise | Im Dohwan, M.A.S 0094 | ||||||
| 2017 | "Make Some Noise" | M.A.S 0094, Lee Dong-gon | Jeon Dawoon, M.A.S 0094, Lee Dong-gon | |||||
| "Boobijuk Bibijuk" (부비적 비비적) | M.A.S 0094 | |||||||
| 2019 | "Crazy & Crazy" (ㅁㅊㄷㅁㅊㅇ) (Prod. Giuk) | Oneus | Light Us | RBW Entertainment | Ravn, Leedo | Jeon Dawoon | ||
| "Ring on my Ears" (귀걸이가 나를 때리게) | Onewe | 1/4 | Jeon Dawoon, Kanghyun | |||||
| "0&4" (공과 사) | Kanghyun, Yonghoon | Kanghyun, Yonghoon, Jeon Dawoon | ||||||
| "Ring on my Ears (Remix)" (귀걸이가 나를 때리게) | Jeon Dawoon | |||||||
| "Kousikondou" (公私混同) | Reminisce About All | Kanghyun, Yonghoon, Hwang Sungjin | Kanghyun, Yonghoon, Jeon Dawoon | |||||
| "Piasugabokuwobutuyouni" (ピアスが僕をぶつように) | Hwang Sungjin | Jeon Dawoon, Kanghyun | ||||||
| "Love Me" (내가 처음 만져본 강아지) | 2/4 | Yonghoon | ||||||
| "Regulus" (야행성) | Kanghyun, HEUNGEUL | Kanghyun, Jeon Dawoon | ||||||
| "Feeling Good (2019 ver.)" | Yonghoon, Kanghyun, Harin, Dongmyeong | Jeon Dawoon, Yonghoon, Kanghyun, Harin, Dongmyeong | ||||||
| 2020 | "Q" (모르겠다고)(feat. Hwasa) | 3/4 | Kim Jaehyun | Jeon Dawoon, Yonghoon, Kim Jaehyun, Noden | ||||
| "Crazy Good" (미쳤다 미쳤어) | One | Yonghoon | Jeon Dawoon, Yonghoon | |||||
| "End Of Spring" (나의 계절 봄은 끝났다) | Kim Dohoon, Seo Yongbae | Kim Dohoon, Seo Yongbae, Jeon Dawoon | ||||||
| "If" | Yonghoon | Yonghoon, Jeon Dawoon | ||||||
| "End of Spring (Rock Ver.)" (나의 계절 봄은 끝났다) | Kim Dohoon, Seo Yongbae | Kim Dohoon, Seo Yongbae, Jeon Dawoon, Kanghyun | ||||||
| "About Her" (그녀는 대체) | Was It Love? OST Part.6 | JTBC Studios | Ha Geunyoung, Lee Suyeon, Lee Jinsil, Yonghoon | |||||
| "Dizzy" (혼란하다 혼란해) | Oneus | Lived | RBW Entertainment | Seoho, Ravn | Seoho, Ravn, CocoDoobooPapa | |||
| "Parting" (소행성) | Onewe | Kanghyun | Kanghyun, Jeon Dawoon, Harin | |||||
| "Regulus (Melody Guide 2)" (야행성) | Kanghyun, HEUNGEUL | Kanghyun | ||||||
| "Parting (Prologue Mix)" (소행성) | Kanghyun | Kanghyun | ||||||
| "Love Me" (내가 처음 만져본 강아지) | Yonghoon | |||||||
| "0&4 (Dialogue Rough)" (공과 사) | Kanghyun, Yonghoon | |||||||
| "Crazy Good (Rock Vibes)" (미쳤다 미쳤어) | Yonghoon | Yonghoon | ||||||
| "If (181125_2)" | Yonghoon | Yonghoon, Jeon Dawoon | ||||||
| "Trauma (Aquarium)" | Yonghoon | Yonghoon, CocoDoobooPapa, Kanghyun, Harin | ||||||
| "A Book in Memory" (기억 속 한 권의 책) | Yonghoon | Yonghoon, Jeon Dawoon | ||||||
| "Eraser" (기억 세탁소) | Jeon Dawoon, Yonghoon | Jeon Dawoon | ||||||
| 2021 | "Intro: Spaceship" (Intro : 우주선) | Kanghyun, Harin | ||||||
| "Rain To Be" (비를 몰고 오는 소년) | Kanghyun | Kanghyun, Jeon Dawoon | ||||||
| "Aurora" | Kanghyun, Yonghoon | |||||||
| "Logo" | Yonghoon, Harin, Dongmyeong | Yonghoon, Kanghyun, CocoDoobooPapa | ||||||
| "A.I." (로보트도 인간에게 감정을 느낀다) | Yonghoon, Dongmyeong | Yonghoon, Jeon Dawoon, Kanghyun | ||||||
| "Veronica" (베로니카의 섬) | Yonghoon | Yonghoon, Kanghyun, Jeon Dawoon | ||||||
| "Cosmos" (천체) | Kanghyun | |||||||
| "Zombie" | Purple Kiss | Hide & Seek | Kim Dohoon, Kang Jiwon, Basick, Yuki | |||||
| "Star" (별) | Onewe | Studio We : Recording #2 | Jeon Dawoon, CocoDoobooPapa, Yonghoon | Jeon Dawoon, CocoDoobooPapa, Yonghoon | ||||
| "Aurora (191128_2)" | Kanghyun, Yonghoon, Jeon Dawoon | |||||||
| "Logo (First Live Ver.)" | Yonghoon | Yonghoon, Kanghyun | ||||||
| "A.I. (Guitar Rough)" (로보트도 인간에게 감정을 느낀다) | Yonghoon | Yonghoon | ||||||
| "Veronica (Draft Guide)" (베로니카의 섬) | Yonghoon | Yonghoon, Kanghyun | ||||||
| "Rain To Be (Original Topline Ver.)" (비를 몰고 오는 소년) | Kanghyun | |||||||
| "Cosmos (Cosmos Guitar Vibe)" (천체) | Kanghyun | |||||||
| "Aquarium (Trauma Ver.)" | ||||||||
| "In Course" | Kanghyun, Harin | |||||||
| 2022 | "Envision_" (우물 속 작은 아이) | Harin | Harin, Yonghoon, CocoDoobooPapa | |||||
| "Montage_" (꿈속에서 놓친 너, 옅은 잠결에 흐르길) | Yonghoon | Yonghoon, Jeon Dawoon, CocoDoobooPapa | ||||||
| "Trigger_" (시발점) | Dongmyeong | |||||||
| "Orbit_" (궤도) | Kanghyun | Kanghyun, Jeon Dawoon, CocoDoobooPapa | ||||||
| "From_" (선물할게요) | ||||||||
| "Roommate" | Timeless | Yonghoon, Im Dohwan | ||||||
| "Starlight (Live Ver.)" | Jeon Dawoon, Onewe | |||||||
| "Hippie (Freedom from MM)" (히피) | Great Seoul Invasion Section 1 | MPMG Music | Yonghoon | Onewe, Jeon Dawoon | ||||
| "Envision_ (Ani Vibe Ver.)" (우물 속 작은 아이) | Studio We : Recording #3 | RBW Entertainment | Harin | Harin | ||||
| "Montage_ (210810)" (꿈속에서 놓친 너, 옅은 잠결에 흐르길) | Yonghoon | Yonghoon | ||||||
| "Trigger_ (201007) (시발점) | Dongmyeong | |||||||
| "Orbit_ (Piano Ver)" (궤도) | Kanghyun | |||||||
| 2023 | "Gravity" | Gravity | Yonghoon, Lee JooHee(MUMW), se.on(MUMW), Young(MUMW) | Yonghoon, Jeon Dawoon | ||||
| "AuRoRa" (English Ver.) | Kanghyun, Yonghoon, Lee Joo Hee(MUMW), Bisom(MUMW) | |||||||
| "Parting" (English Ver.) | Kanghyun, Lee Joo Hee(MUMW), ReMi(MUMW) | Kanghyun, Jeon Dawoon, Harin | ||||||
| "Regulus" (English Ver.) | Kanghyun, HEUNGEUL, Lee Joo Hee(MUMW), Im Hye Rin(MUMW) | Kanghyun, Jeon Dawoon | ||||||
| "Montage_" (English Ver.) | Yonghoon, Lee Joo Hee(MUMW), Kim Eung Ju(MUMW) | Yonghoon, Jeon Dawoon, CocoDoobooPapa | ||||||
| "Rain To Be" (English Ver.) | Kanghyun, Lee Joo Hee(MUMW), Seo Ha Mi(MUMW) | Kanghyun, Jeon Dawoon | ||||||
| "Ring on my Ears" (English Ver.) | Lee Joo Hee(MUMW), ReMi(MUMW) | Jeon Dawoon, Kanghyun | ||||||
| "Trauma" (English Ver.) | Yonghoon, Lee Joo Hee(MUMW), LEESIDAE(MUMW) | Yonghoon, CocoDoobooPapa, Kanghyun, Harin | ||||||
| "Logo" (English Ver.) | Yonghoon, Harin, Dongmyeong, Lee Joo Hee(MUMW), Bisom(MUMW) | Yonghoon, Kanghyun, CocoDoobooPapa | ||||||
| End Of Spring (English Ver.) | Kim Dohoon, Seo Yongbae, ESSIE | Kim Dohoon, Seo Yongbae, Jeon Dawoon | ||||||
| "Crazy Good" (English Ver.) | Yonghoon, Lee Joo Hee(MUMW), roze(MUMW) | Jeon Dawoon, Yonghoon | ||||||
| "Zombie (Japanese ver.)" | Purple Kiss | Dear Violet | Kim Dohoon, Kang Jiwon, Basick, Yuki, Davve | |||||
| "Intro : X" (새 지구) | Giuk | |||||||
| "Time Machine (2100)" (제0호선 시간역행) | Jeon Dawoon | |||||||
| "Unblown (2020)" (꽃에 물 안 주고 피길 원하네) (feat. Aden) | Aden | Jeon Dawoon, Aden, Gray Dot | ||||||
| "Ego (2021)" (자기중심적) (feat. NiiHWA) | NiiHWA, Kauhaxi | Jin Minho, NiiHWA, Kauhaxi | ||||||
| "Love Virus❤ (2050)" (feat. Sunwoo) | Sunwoo | Sunwoo, LIVING PUFF | ||||||
| "Rarity (2062)" (멸종 위기종) | Jeon Dawoon, Gray Dot | |||||||
| "Xybernetic (2077)" (feat. Kami) | KAMI | KAMI | ||||||
| "Apocalypse (2090)" | YHK, Gray Dot | |||||||
| "Save Me" (지구에 혼자 남게 된다면 (..*---*..)) | Mamamoo+ | Two Rabbits | Moonbyul | Jeon Dawoon, Moobyul | ||||
| "Salty Boy" | Onewe | XOXO | Dongmyeong | Dongmyeong, Jeon Dawoon | ||||
| "Omnipresent" (동서님복) | Harin, CocoDoobooPapa | |||||||
| "Mistake" | Purple Kiss | Festa | AllThou, KINSHA, FLORA | |||||
| "A Girl's Panorama" (소녀의 파노라마) (feat. Giuk) | YongYong | MyMy | Saurus | YongYong | YongYong, Heondred | |||
| "Intro : Foreverest" (Intro : 영원의 숲) | Giuk | Rise Waves | RBW Entertainment | Gray Dot | ||||
| "Scratch" (내 영혼에 낸 Scratch) | Jeon Dawoon | |||||||
| "Block123" (보도블록123) (feat. Moonbyul of Mamamoo) | CocoDoobooPapa | CocoDoobooPapa | ||||||
| "Overtake" (추월) | Jeon Dawoon, mediumrarecookies, 8:59 | |||||||
| "Happy or Not?" (feat. Rare, Gray Dot) | Gray Dot, Rare | Gray Dot, Rare | ||||||
| "Penrose Stairs" (feat. YongYong, Leedo of Oneus) | YongYong, Leedo | YongYong, Leedo | ||||||
| "My Blue" | Gray Dot | |||||||
| "Outro : Dresden" (Outro : 한 소녀의 촛불) | Kauhaxi | Kauhaxi | ||||||
| "We Wish You A Merry Christmas" | Onewe | Non-album single | Dongmyeong | Dongmyeong | ||||
| 2024 | "Beautiful Ashes" (추억의 소각장) | Yonghoon | Jeon Dawoon, Yonghoon, Kanghyun, Harin | |||||
| "Shoot It Out" | Kanghyun | |||||||
| "Meteor Shower" (한여름 밤 유성우) | Gray Dot | |||||||
| "Count The Stars" (별 세는 너) | Yonghoon | |||||||
| "Kiss in the Rain" | Dongmyeong | Jeon Dawoon, Dongmyeong, CocoDoobooPapa | ||||||
| "Pleasant" (다시 만나서 반가워) | Harin, Yonghoon | |||||||
| "Back To You" (오늘 또 내일) (feat. Giuk) | Aden | MARO Records | Aden | Aden, RUIMUI | ||||
| "Off Road" | Onewe | Off Road | RBW Entertainment | Dr.Jo | ||||
| "Solar Halo Ring" | Bydor Archive | Kanghyun, Gray Dot, Bydor Archive | ||||||
| "A Piece of You" | Yonghoon | |||||||
| "You Don't Love Me" (틀린 말없이) (feat. Giuk) | Divine | Divine | Divine, Checkmate | |||||
| "We X Mas" (크리스마스는 이래야지) | Onewe | Secret Santa | RBW Entertainment | Dongmyeong, Harin | Dongmyeong, Harin, Jeon Dawoon | |||
| "Actor" | Jeon Dawoon, Yonghoon | Jeon Dawoon, Yonghoon, Kanghyun, Harin | ||||||
| 2025 | "Alice" | Kanghyun | ||||||
| "The Starry Night" (별 헤는 밤) | Kanghyun | |||||||
| "Evildoer" (악당은 영웅의 변신을 기다려준다) | Bydor Archive, Jxhyung | Jxhyung, Bydor Archive | ||||||
| "Traffic Love" (일방통행; 一方通行) | Bydor Archive | Bydor Archive, wez | ||||||
| "Rise Again" (오래된 음악가의 추억) | Harin | |||||||
| "Dreamcatcher" (청천을; 靑天乙) | Bydor Archive | Gray Dot, Bydor Archive | ||||||
| "All the things I love" (눈이 부시게) | Dongmyeong | |||||||
| "Sole Star" (검은 별) | Bydor Archive | Bydor Archive, wez, Gu Ye-eun | ||||||
| "Lighthouse" | "Where's my hero? Special OST Part.3" | Page !, Jeon Dawoon, Harin, Kanghyun | ||||||
| "Zombie (English ver.)" | Purple Kiss | Our Now | Kim Dohoon, Kang Jiwon, Basick, Yuki, eSNa | |||||
| "Maze" (미로) | Onewe | Bydor Archive | Bydor Archive, wez | |||||
| "Hide & Seek" (숨바꼭질) | Bydor Archive | Jxhyung, Bydor Archive | ||||||
| "Trace" (흔적) | Harin | |||||||
| "Beyond the Storm" (비바람을 건너) | Dongmyeong, X3RO | |||||||
| 2026 | "Ferris wheel" (관람차) | Studio We: Recording #4 | Bydor Archive | Hashin, Bydor Archive | ||||
| "Meteor Shower" (한여름 밤 유성우) (7.29) | ||||||||
| "Dreamcatcher" (청천을) (2021) | ||||||||
| "Rise Again" (오래된 음악가의 추억) (Nostalgia Demo Ver.) | Harin | |||||||
| "Solar Halo Ring" (바다에 적신 햇무리 반지) (Wedding Ver.) | Bydor Archive | Kanghyun, Gray Dot, Bydor Archive | ||||||
| "You & Me" (너 하고 나) (feat. Giuk) | Divine | Divine | Divine | |||||
