Quick Idol Overview
Stage Name: Juhoon
Birth Name: Kim Juhoon
Korean Name (한글): 김주훈
Birthday: January 3, 2008
Age: 18 Years
Nationality: Korean
Zodiac Sign: Capricorn
Chinese Zodiac: Rat
Group / Solo: CORTIS
Company: BigHit Music
Position: Vocalist, Rapper, Visual
Debut Date: August 18, 2025 (CORTIS – “What You Want”)
MBTI: ISFP
Social Media Presence
No official individual account of Keonho (CORTIS)
Personal Details
Nickname: Jju, Poyoyoi, Huni, Twinski, Chill guy, Jju
Hometown: Seoul, South Korea
Hobbies: Playing piano, basketball, music production
Favorite Food: Ramen, pork kimchi stew, fried chicken
Favorite Music: Hip-hop, pop, alternative music
Favorite Color: Black
Role Model: Not Publicly Confirmed
Physical Profile
| ATTRIBUTE | DETAILS |
|---|---|
| Height | 175–176 cm (5’9″) |
| Weight | Not Publicly Confirmed |
| Blood Type | O |
| Shoe Size | Not Publicly Confirmed |
Beauty Breakdown (Fan-Observed)
Face shape: Small and defined face shape
Eye type: Calm eyes with relaxed gaze
Distinct features: Deep voice, youthful visuals
Body proportions: Lean build with balanced proportions
Career Journey
Pre-Debut
● Worked as a child model before becoming a trainee
● Played competitive youth basketball during childhood
● Attended Young Hoon International Middle School
● Joined BigHit Music in 2024 and became the final member added to CORTIS
Debut & Growth
● Introduced as a CORTIS member in July 2025
● Officially debuted on August 18, 2025
● Co-wrote all tracks on CORTIS’s first EP Color Outside the Lines
● Participated in choreography development for the song “GO!”
On-Camera Personality
● Quiet and observant at first
● Relaxed and easygoing around members
● Known for unexpectedly funny comments
● Shows a calm confidence despite being introverted
Fashion, Style & Aura
Airport fashion: Casual and understated
Stage style: Clean and youthful
Signature items: Dark-colored outfits, relaxed silhouettes
Brand associations: NBA partnership campaigns, MLB collaboration projects through CORTIS group activities
Fitness, Diet & Health
● Former youth basketball player
● Maintains athletic idol physique
● Active in dance and performance training
● Focuses on stamina and stage endurance
Popularity Insights
● One of the most recognizable pre-debut CORTIS members
● Frequently praised for his deep vocal tone
● Growing popularity among international fans
● Known for dramatic improvement since debut
Viral Moments & Fan Favorites
● Child model photos resurfacing after debut
● Deep voice becoming a fan-favorite trait
● Funny “chill guy” moments in content
● Songwriting credits on CORTIS debut releases
Acting & Musical Work
● Co-wrote every track on Color Outside the Lines
● Participated in songwriting for multiple CORTIS releases
● Contributed ideas for choreography and performance concepts
● Active in CORTIS’s creator-focused production process
Controversies & Clarifications
● No major controversies
● Maintains a positive public image
● Known for professionalism despite limited trainee period
FAQs Fans Ask
Who is Juhoon in CORTIS? → He is a vocalist, rapper, visual, and songwriter.
Was Juhoon a child model? → Yes, before joining BigHit Music.
Can Juhoon speak English? → Yes, he speaks Korean and English fluently.
What is Juhoon known for? → His deep voice, songwriting, and calm personality.
Fun Facts You Didn’t Know
● Owns a pet turtle named Choco
● Modeled for major fashion brands before his music debut
● Attended Younghoon International Middle School
● Appeared as a kid in Zion.T and VIXX videos