Hwang Ju-ho
Vocal Trainer
Big Hit / HYBE backgroundDebut-team specialistLessons in Japanese
A vocal trainer who has led debut teams at Big Hit Music (HYBE) and HYBE Labels Japan. Across major Korean and Japanese agencies including CUBE, Avex, C9, and PLEDIS, he has developed idols such as CORTIS, DKZ, CSR, and n.SSign, and has coached top artists like Chuu of LOONA and DPR IAN. A vocal major from the Seoul Institute of the Arts, he also teaches Japanese trainees directly in Japanese.
⭐ Vocal trainer for debut teams at Big Hit Music & HYBE Labels Japan
Kim Joohyun
Vocal Trainer & Professor of Applied Music
University FacultyChorus MasterAudition-Show Trainer
Kim Joohyun holds a master's in Music Performance (Vocal) from Sejong University's Graduate School and currently teaches applied music as a professor at Joongbu, Baekseok Arts, and Hanyang Women's Universities. She has built her career as a chorus master and session vocalist for top Korean artists including Lim Jae-bum, Lee Eun-mi, IU, Park Hyo-shin, and BIGBANG, and has served as a vocal trainer on major TV audition shows such as Mr. Trot 3 and Great Birth. Her global teaching experience spans K-pop academies run by Korean Cultural Centers in Egypt, Vietnam, and New York.
⭐ Active professor of applied music at multiple universities
Choyoung
Vocal Trainer · Singer-Songwriter
Berklee gradUniversity lecturerSinger-songwriter
A Berklee College of Music graduate in Voice Performance — on scholarship, on the Dean's List every semester, and a Voice Achievement Award recipient — with a graduate degree in applied music from Seokyeong University. Now a lecturer in the applied music departments of Howon University, International Arts University, and Baekseok Arts University. Credits span broadcasts including Mnet and EBS Space Gonggam, plus collaborations with artists such as Double K, nafla, and OH MY GIRL.
⭐ Berklee College of Music graduate (Voice Performance)
Lee Seung-hyuk
Vocal Trainer & Concert Director
University FacultyIdol Vocal CoachConcert Director
Lee Seung-hyuk trained in vocal performance at Dong-ah Institute of Media and Arts and holds a graduate degree in popular music production & management from Dankook University. He currently teaches applied and K-pop vocal music at Howon University, Kookje University, and Baekseok Arts University, and has coached idol artists including Ji Jin-seok (UNDER NINETEEN) and Juhan (BLITZERS). His credits span chorus and session work for Brown Eyed Girls, Shin Seung-hun, and SG Wannabe, along with concert direction for Lee Seung-hwan and Bobby Kim.
⭐ Faculty at Howon, Kookje & Baekseok universities
Yoo Ah-young
Vocal Trainer & Vocalist
University lecturerAudition prepActive vocalist
A professional vocalist grounded in applied music, she holds a bachelor's in vocal performance from Howon University and completed graduate coursework in Applied Music at Hanyang University. She lectures in the K-POP department at Yeonsung University and at leading arts high schools such as the Seoul School of Performing Arts, and has toured as a backing vocalist for top Korean artists including Ailee, jazz singer Woongsan, and Haha & Skull — all while releasing her own digital singles under the name 'UA.' Her students have gone on to major agencies like SM, JYP, and Starship, as well as top applied-music programs including the Seoul Institute of the Arts.
⭐ Students placed at SM, JYP & top arts universities
Ji Seung-gyu
Vocal Trainer & Singer-Songwriter
University LecturerM.A. in VocalJ-POP Vocal Direction
A vocal trainer who earned a Master's in Applied Music (Vocal) from the Graduate School of Dongduk Women's University. He currently teaches voice at Yeonsung University's K-POP Department and at several leading arts high schools, including Gyewon and Sejong Arts High School, mentoring the next generation of artists. His edge is hands-on experience across both K-POP and J-POP — guide and chorus sessions for Produce 101 Japan, Japanese-language vocal direction, and his own single released in Japan.
⭐ Master's in Applied Music (Vocal), Dongduk Women's University
Jung In-hye
Vocal Trainer · Singer-Songwriter
Singer-SongwriterCollege Audition PrepMusic-Show Artist
A graduate of Korea Nazarene University's Applied Music program with a vocal major, Jung In-hye trained under top Korean vocalists including Naul of Brown Eyed Soul. She debuted as the singer-songwriter Limit under EGO Entertainment, releasing 24 digital singles and performing on major music shows such as M Countdown and THE SHOW. Today she coaches aspiring music-college students as a vocal trainer, with a track record of students admitted to Pyeongtaek and Korea Nazarene universities.
⭐ Trained under Naul of Brown Eyed Soul
Lee Ja-hyeon
Vocal Trainer & Vocalist
Concours Grand PrizeDuo JAJUNGAudition Coaching
A graduate of Dong-Ah Institute of Media and Arts (Applied Music, Vocal), Lee Ja-hyeon won the Grand Prize in the vocal division of the 9th Kyunghyang Applied Music Concours. As one half of the female duo JAJUNG, she has appeared on major broadcasts and stages including KBS1's Gayo Stage, SBS's Fantastic Duo, and the eve gala of the 2019 Gwangju World Aquatics Championships. She now coaches at leading applied-music academies, having guided students to admissions at Dongseoul University and the Paris Regional Conservatory (CRR de Paris).
⭐ Grand Prize, Kyunghyang Applied Music Concours (Vocal)
Kim Legend (Kim Dae-woo)
Vocal Trainer & Singer-Songwriter
Guide VocalsAcademy InstructorGrand Prize Winner
A seasoned vocal trainer who has recorded guide vocals for renowned Korean artists including Hwang Chi-yeul, Na Yoon-kwon, Jeong Dong-won, and Yang Da-il. A multiple song-festival award winner — including a national vocal-competition grand prize — he has taught at several professional music academies across Korea. As an active singer-songwriter featured on GENIE MUSIC and UBC broadcast live stages, he coaches practical, stage-ready vocal technique.
⭐ Guide vocalist for stars like Hwang Chi-yeul & Yang Da-il
Blueny
R&B Vocalist & Vocal Coach
Active R&B ArtistK-R&B VocalsApplied Music Grad
Blueny is the main vocalist of OuiOui, an emotional R&B duo, with a clear, warm tone that moves effortlessly between delicate nuance and powerful emotion. Since debuting in 2018 with the single [HANA], she has performed at Grand Mint Festival, appeared on KBS "All That Music," and sung chorus for a Brown Eyed Soul concert. A vocal-major graduate of Nazareth University's applied music program, she teaches K-R&B tone, breathing, and emotional expression from the perspective of an active recording artist.
⭐ Main vocalist of R&B duo OuiOui
이지욱
Vocal Trainer
최종합격 - STARSHIP, Woollim, VT, H Company E 외
2차 합격 및 관리대상
SM, JYP, Kakao, CUBE, FNC, DOD 외
⭐ 대형 기획사 합격생 배출
이승혁
Vocal Trainer
BLACK Y MUSIC 엔터테인먼트 보컬트레이너
W2B 엔터테인먼트 보컬트레이너
언더나인틴 지진석
블리쳐스 주한(홍승현)
우리자리 자리(이민기)
25 대학가요제 대상 이재엽
⭐ 대학교수 출신