Journal
Journal
Notes on songs, stages and broadcasts, with sources.
Artist
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Kim Hyuk Gun: Official Profile and Name Guide
KIM HYUK GUN, vocalist of THE CROSS: how to write his name, his 2003 debut, two bands, solo albums, broadcasts, books and lectures, year by year.
A First Guide to Kim Hyuk Gun's Music
New to Kim Hyuk Gun? From THE CROSS's 2003 "Don't Cry" to his solo albums, 20th anniversary songs and recent singles: key songs and official videos.
Kim Hyuk Gun's Voice: Three-Octave High Notes and Hard Rock Roots
From the three-octave high notes of "Don't Cry" to Black Sabbath and Deep Purple covers: the range, technique and hard rock roots of Kim Hyuk Gun's voice.
Research
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Kim Hyuk Gun's Research on Vocal Technique 1/24 · Study Overview: How Much Does Abdominal Breathing Help High Notes?
How much does abdominal breathing help high notes? Part 1 of a 24-part series reading Kim Hyuk Gun's 2019 dissertation for vocal students.
Kim Hyuk Gun's Research on Vocal Technique 2/24 · Understanding Phonation: The Voice Begins with Breath
The voice is not made in the throat alone. What phonation is, and why breathing is the basis of vocal technique, from Kim Hyuk Gun's dissertation.
Kim Hyuk Gun's Research on Vocal Technique 3/24 · Chest, Rib and Abdominal: Three Kinds of Breath for Singing
Abdominal breathing is more than pushing out your belly. Chest, rib and abdominal breathing, and the breath for singing, from Kim Hyuk Gun's dissertation.
Kim Hyuk Gun's Research on Vocal Technique 4/24 · Lungs, Diaphragm and Breathing Muscles: The Structure That Moves the Breath
The lungs cannot breathe on their own. The lungs, diaphragm and breathing muscles shown on an anatomical model, and the breath for singing — from Kim Hyuk Gun.
Kim Hyuk Gun's Research on Vocal Technique 5/24 · The Larynx and Vocal Folds: Where Sound Is Born
The vocal folds sing through a balance of closing and opening. The larynx and vocal folds shown on a laryngeal model, and how sound is made — from Kim Hyuk Gun.
Kim Hyuk Gun's Research on Vocal Technique 6/24 · Vocal Folds and Diaphragm: High Notes Come from a Balance of Force
Don't force your belly. The balance of force between the vocal folds and the diaphragm, and why high notes break, from Kim Hyuk Gun's dissertation.
Kim Hyuk Gun's Research on Vocal Technique 7/24 · Chest (Full) Voice: The Sound Made with the Folds Together
To reach high notes, stretch the folds and bring them together. Chest voice, the true vocal folds and staccato practice, from Kim Hyuk Gun's dissertation.
Kim Hyuk Gun's Research on Vocal Technique 8/24 · Falsetto and Registers: Low, Middle and High in One Line
High notes in falsetto, low notes in full voice. How registers are divided, and how to join the two sounds into one line, from Kim Hyuk Gun's dissertation.
Kim Hyuk Gun's Research on Vocal Technique 9/24 · The Resonators: Your Body Is the Instrument
Your body is the instrument. How resonance works, and the mouth, soft palate and pharynx that amplify the sound, from Kim Hyuk Gun's dissertation.
Kim Hyuk Gun's Research on Vocal Technique 10/24 · The Nasal Cavity and Nasal Resonance: Breath That Rings the Nose
Nasal resonance is not the sound of a blocked nose. The resonance of the nasal cavity and sinuses, and the nose's path to head voice, from Kim Hyuk Gun.
Kim Hyuk Gun's Research on Vocal Technique 11/24 · Resonance Methods: Five Steps to Making Resonance
Resonance means knowing where it sits and learning it in the body. Resonance by range, and the five steps that make it, from Kim Hyuk Gun's dissertation.
Kim Hyuk Gun's Research on Vocal Technique 12/24 · Chest Voice: Lower the Tongue Root, Lift the Soft Palate
Chest voice is not a sound that rings in the chest. Chest voice, and lowering the tongue root and lifting the soft palate, from Kim Hyuk Gun's dissertation.
Kim Hyuk Gun's Research on Vocal Technique 13/24 · Head Voice: Ringing the Front of the Head with a Bright "E"
Place the sound at the front of your head. Head voice, and the maschera exercise that starts with the bright vowel "e," from Kim Hyuk Gun's dissertation.
Kim Hyuk Gun's Research on Vocal Technique 14/24 · From Bel Canto to Scientific Vocal Technique
Know the principle through science, let the body be natural. Bel canto and modern scientific vocal technique, from Kim Hyuk Gun's dissertation.
Kim Hyuk Gun's Research on Vocal Technique 15/24 · Vibrato: A Tremble That Comes from Practice
Vibrato comes as the result of practice. Vibration versus vibrato, and how vibrato arises, from Kim Hyuk Gun's dissertation.
Kim Hyuk Gun's Research on Vocal Technique 16/24 · Vibrato Practice and Dollyeonaegi (Turning the Sound)
When force stiffens, vibrato stiffens too. Vibrato practice, and girare — turning the sound round — from Kim Hyuk Gun's dissertation.
Kim Hyuk Gun's Research on Vocal Technique 17/24 · Passaggio: The Path That Joins the Registers
The passaggio is not where you break but the path that joins. The transition zones between registers, and three reasons they move, from Kim Hyuk Gun.
Kim Hyuk Gun's Research on Vocal Technique 18/24 · High Notes and Appoggio: Harmony Found as Two Forces Wrestle
Harmony found as two forces wrestle. Appoggio, and why breath alone cannot carry high notes, from Kim Hyuk Gun's dissertation.
Kim Hyuk Gun's Research on Vocal Technique 19/24 · Posture and Correct Breathing: Every Sound Starts with Posture
Every sound starts with posture. Natural posture, and correct breathing that swells the belly, sides and back, from Kim Hyuk Gun's dissertation.
Kim Hyuk Gun's Research on Vocal Technique 20/24 · Support: The Exhale Is the Sound
The exhale is the sound, and support is the technique of the exhale. How to keep the sound without wasting breath, from Kim Hyuk Gun's dissertation.
Kim Hyuk Gun's Research on Vocal Technique 21/24 · Pitch, Range and Interval Practice: One Table for the Practice Room
Always float the pitch high. Pitch and interval practice, the vocal diary, and a table of singing exercises, from Kim Hyuk Gun's dissertation.
Kim Hyuk Gun's Research on Vocal Technique 22/24 · Diction: Consonants at the Front, Vowels at the Back
Vowels are made in the back space of the mouth. Where consonants and vowels are formed, and how to keep the resonance as they change, from Kim Hyuk Gun.
Kim Hyuk Gun's Research on Vocal Technique 23/24 · Sing with Your Breath: All the Breath into Sound
All the breath should turn into sound. "Sing with your breath," muscle relaxation, confidence and the singer's body care, from Kim Hyuk Gun.
Kim Hyuk Gun's Research on Vocal Technique 24/24 · Practice Routine and Experimental Results: The Numbers Ten Lessons Left
The change ten lessons left in numbers. The experimental results of Kim Hyuk Gun's dissertation, and the 24 parts bundled into one practice cycle.
Music
Visit page →Don't Cry: The 2003 Original and the 2023 Anniversary Recording
THE CROSS's "Don't Cry," sung by Kim Hyuk Gun: the 2003 original on "Melody Quus," its 2003 TV stages, Sugar Man 3 in 2020 and the 2023 re-recording.
THE CROSS 20th Anniversary Project: Poem of the Wind
"Poem of the Wind," made by Kim Hyuk Gun and Lee Si-ha, is the heart of THE CROSS's 20th anniversary, alongside "Don't Cry (2023)" and "To Reach You."
Kim Hyuk Gun's Solo Albums: Warrior (2007) and When You Need (2011)
Kim Hyuk Gun's two solo albums, Warrior (2007) and When You Need (2011): release dates, track lists, musicians and title-song music videos.
Just One Step (Comfort) (2024): Kim Hyuk Gun and Habi
"Just One Step (Comfort)" (2024) is a project single by Kim Hyuk Gun and Choi Sung-yong of Habi TV: who made it, the credits and the music video.
Band
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THE CROSS Band's Rock Covers
THE CROSS BAND's rock covers since 2021: Black Sabbath, Deep Purple, Ozzy Osbourne, Jimi Hendrix, Prince and Blackhole, with players and official videos.
Black Sabbath's 'Heaven and Hell': The Original and THE CROSS BAND's Cover
Black Sabbath's 1980 title track with Ronnie James Dio, and the 2026 cover by Kim Hyuk Gun and THE CROSS BAND: players, approach and videos.
Deep Purple's 'Burn': The Original and THE CROSS BAND's Cover
Deep Purple Mark III's 1974 title track, and THE CROSS BAND's 2026 cover that drops the synthesizer to keep the energy and the aggressive groove.
Ozzy Osbourne's 'Mr. Crowley': The Original and THE CROSS BAND's Cover
The song from Ozzy Osbourne's first solo album, Blizzard of Ozz, and the 2025 tribute cover by Kim Hyuk Gun and THE CROSS BAND.
Jimi Hendrix's 'Little Wing': The Original and Rockband Cross's Cover
The story of The Jimi Hendrix Experience's 1967 "Little Wing" and the 2024 voice-and-guitar cover by Kim Hyuk Gun and Han Seung-ju as Rockband Cross.
Prince's 'Purple Rain': The Original and Kim Hyuk Gun & THE CROSS BAND's Cover
How Prince & The Revolution made "Purple Rain" in 1984, and the 2026 cover by Kim Hyuk Gun and THE CROSS BAND featuring dancer Lee Jae-min.
Live & Lecture
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Media
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On Broadcast: Programs, Dates and Sources
Kim Hyuk Gun on Korean TV from the 2001 Mnet Music Festival to CTS "Joy Every Day" (2024): broadcaster, program, air date and official video.
Re:Alive (2023): Kim Hyuk Gun and His Digital Twin
In December 2023, JTBC's Re:Alive used AI to build a digital twin of Kim Hyuk Gun's peak voice and put it on stage with him and THE CROSS.