| Origin |
Seoul, South Korea |
| Debut |
December 18, 2025 |
| Number of Members |
3 |
| Members |
Kim Hyunjoong
Heo Youngsaeng
Kim Kyujong |
| Oldest Member |
Kim Hyunjoong |
| Youngest Member (Maknae) |
Kim Kyujong |
| Tallest Member |
Kim Hyunjoong |
| Shortest Member |
Heo Youngsaeng |
FIVE O ONE Members Profile
Kim Hyunjoong
| Full Name |
Kim Hyun-joong |
| Birthday |
June 06, 1986 |
| Birthplace |
Jamsil-dong, Gangdong-gu, Seoul, South Korea |
| Age |
40 years and 4 months old |
| Height |
6 feet 0 inches (183 cm) |
| Weight |
149.91 lbs (68 kg) |
| Zodiac Sign |
Gemini |
| Chinese Zodiac Sign |
Tiger |
| Blood Type |
B |
| MBTI |
INFJ |
| Position |
Leader, Main Dancer, Vocalist, Rapper, Face of the Group |
| Instagram |
@hyunjoong860606 |
Heo Youngsaeng
| Full Name |
Heo Young-saeng |
| Birthday |
November 03, 1986 |
| Birthplace |
Gwangju, Gyeonggi-do, South Korea |
| Age |
39 years and 11 months old |
| Height |
5 feet 10 inches (177 cm) |
| Weight |
136.69 lbs (62 kg) |
| Zodiac Sign |
Scorpio |
| Chinese Zodiac Sign |
Tiger |
| Blood Type |
O |
| MBTI |
INTJ |
| Position |
Main Vocalist |
| Instagram |
@youngsaeng17 |
Kim Kyujong
| Full Name |
Kim Kyu-jong |
| Birthday |
February 24, 1987 |
| Birthplace |
Jeonbuk, Jeonju, South Korea |
| Age |
39 years and 7 months old |
| Height |
6 feet 0 inches (183 cm) |
| Weight |
149.91 lbs (68 kg) |
| Zodiac Sign |
Pisces |
| Chinese Zodiac Sign |
Rabbit |
| Blood Type |
A |
| MBTI |
ENFP |
| Position |
Main Rapper, Vocalist, Maknae |
| Instagram |
@jdream_kyujong |
Member Ages: Oldest to Youngest
| Member |
Birthday |
Age |
| Kim Hyunjoong |
June 06, 1986 |
40 years, 4 months, 7 days old |
| Heo Youngsaeng |
November 03, 1986 |
39 years, 11 months, 10 days old |
| Kim Kyujong |
February 24, 1987 |
39 years, 7 months, 19 days old |
FAQs
How many members are in FIVE O ONE?
FIVE O ONE is a 3-member K-pop boy group. The group consists of Kim Hyunjoong, Heo Youngsaeng, and Kim Kyujong.
When did FIVE O ONE debut?
FIVE O ONE debuted on December 18, 2025, with their single Last Christmas.