| Origin | Seoul, South Korea |
| Debut | December 2, 2023 |
| Number of Members | 6 |
| Members | JS HaHa Old K Joo Woojae Lee Yikyung Young K |
| Oldest Member | JS |
| Youngest Member (Maknae) | Young K |
| Tallest Member | Joo Woojae |
| Shortest Member | HaHa |
ONE TOP Members Profile
JS
| Full Name | Yoo Jae-suk |
| Birthday | August 14, 1972 |
| Birthplace | Suyu-dong, Seongbuk-gu, Seoul, South Korea |
| Age | 53 years and 10 months old |
| Height | 5 feet 10 inches (178 cm) |
| Zodiac Sign | Leo |
| Chinese Zodiac Sign | Rat |
| Blood Type | B |
| MBTI | ISFP |
| Education | Seoul Youhyeon Elementary School, Suyu Middle School, Yongmoon High School, Seoul Institute of the Arts |
| Position | Leader, Lead Rapper, Lead Dancer |
HaHa
| Full Name | Ha Dong-hoon |
| Birthday | August 20, 1979 |
| Birthplace | N/A |
| Age | 46 years and 10 months old |
| Height | 5 feet 6 inches (168.3 cm) |
| Zodiac Sign | Leo |
| Chinese Zodiac Sign | Sheep |
| Blood Type | B |
| MBTI | ENFP |
| Education | Yongnam Elementary School, Towol Middle School, Osan High School, Daejin University |
| Position | Main Rapper |
| @quanhaha79 |
Old K
| Full Name | Kim Jong-min |
| Birthday | September 24, 1979 |
| Birthplace | Banghak-dong, Dobong-gu, Seoul, South Korea |
| Age | 46 years and 9 months old |
| Height | 5 feet 9 inches (175 cm) |
| Zodiac Sign | Libra |
| Chinese Zodiac Sign | Sheep |
| Blood Type | O |
| MBTI | INFP |
| Education | Changdo Elementary School, Dobong Middle School, Seoul Culture High School, Gimcheon University, Mokwon University |
| Position | Main Dancer, Sub-Vocalist |
Joo Woojae
| Full Name | Joo Woo-jae |
| Birthday | November 28, 1986 |
| Birthplace | Geojedo, South Korea |
| Age | 39 years and 6 months old |
| Height | 6 feet 2 inches (188 cm) |
| Zodiac Sign | Sagittarius |
| Chinese Zodiac Sign | Tiger |
| Blood Type | AB |
| MBTI | ISTP |
| Education | Changwon NamSan High School, Hongik University (Mechanical Engineering) |
| Position | Sub-Vocalist |
| @ophen28 |
Lee Yikyung
| Full Name | Lee Yi-kyung |
| Birthday | January 08, 1989 |
| Birthplace | Cheongju, Chungcheongbuk-do, South Korea |
| Age | 37 years and 5 months old |
| Height | 5 feet 11 inches (181 cm) |
| Zodiac Sign | Capricorn |
| Chinese Zodiac Sign | Dragon |
| Blood Type | A |
| MBTI | ENTP |
| Education | Gakyong Elementary School, Gyeongdeok Middle School, Seoul Institute of the Arts |
| Position | Lead Vocalist |
| @luvlk89 |
Young K
| Full Name | Kang Young-hyun |
| Birthday | December 19, 1993 |
| Birthplace | Ilsan, South Korea |
| Age | 32 years and 6 months old |
| Height | 5 feet 11 inches (180.2 cm) |
| Zodiac Sign | Sagittarius |
| Chinese Zodiac Sign | Rooster |
| Blood Type | B |
| MBTI | ENTP |
| Education | Dongguk University (Business Administration), York Mills Collegiate Institute |
| Position | Center, Main Vocalist, Maknae |
| @from_youngk/ |
Member Ages: Oldest to Youngest
| Member | Birthday | Age |
|---|---|---|
| JS | August 14, 1972 | 53 years, 10 months, 12 days old |
| HaHa | August 20, 1979 | 46 years, 10 months, 6 days old |
| Old K | September 24, 1979 | 46 years, 9 months, 2 days old |
| Joo Woojae | November 28, 1986 | 39 years, 6 months, 29 days old |
| Lee Yikyung | January 08, 1989 | 37 years, 5 months, 18 days old |
| Young K | December 19, 1993 | 32 years, 6 months, 7 days old |
FAQs
How many members are in ONE TOP?
ONE TOP is a 6-member K-pop boy group. The group consists of JS, HaHa, Old K, Joo Woojae, Lee Yikyung, and Young K.
When did ONE TOP debut?
ONE TOP debuted on December 2, 2023, with their single SAY YES.
