| Origin | Seoul, South Korea |
| Disbanded | August 2025 |
| Members | Hyemin Gona Ayoung Jihyun |
| Oldest Member | Hyemin |
| Youngest Member (Maknae) | Jihyun |
| Tallest Member | Jihyun |
| Shortest Member | Ayoung |
4IREN Former Members Profile
Hyemin
| Full Name | Kim Hyemin |
| Birthday | October 01, 2000 |
| Birthplace | N/A |
| Age | 25 years and 8 months old |
| Height | 5 feet 5 inches (165 cm) |
| Weight | 105.82 lbs (48 kg) |
| Zodiac Sign | Libra |
| Chinese Zodiac Sign | Dragon |
| Position | Vocalist, Dancer |
Gona
| Full Name | Kim Gona |
| Birthday | May 16, 2001 |
| Birthplace | N/A |
| Age | 25 years and 1 month old |
| Height | 5 feet 4 inches (163 cm) |
| Weight | 103.62 lbs (47 kg) |
| Zodiac Sign | Taurus |
| Chinese Zodiac Sign | Snake |
| Position | Vocalist |
Ayoung
| Full Name | Kim Ayoung |
| Birthday | November 07, 2002 |
| Birthplace | N/A |
| Age | 23 years and 7 months old |
| Height | 5 feet 3 inches (160 cm) |
| Weight | 101.41 lbs (46 kg) |
| Zodiac Sign | Scorpio |
| Chinese Zodiac Sign | Horse |
| Position | Main Rapper, Sub Vocalist |
| @_a_yay |
Jihyun
| Full Name | Choi Jihyun |
| Birthday | November 08, 2004 |
| Birthplace | N/A |
| Age | 21 years and 7 months old |
| Height | 5 feet 5 inches (166 cm) |
| Weight | 99.21 lbs (45 kg) |
| Zodiac Sign | Scorpio |
| Chinese Zodiac Sign | Monkey |
| Blood Type | A |
| MBTI | ISFP/ISTP |
| Education | Hanlim Multi Art School |
| Position | Vocalist, Dancer, Maknae |
Member Ages: Oldest to Youngest
| Member | Birthday | Age |
|---|---|---|
| Hyemin | October 01, 2000 | 25 years, 8 months, 26 days old |
| Gona | May 16, 2001 | 25 years, 1 month, 11 days old |
| Ayoung | November 07, 2002 | 23 years, 7 months, 20 days old |
| Jihyun | November 08, 2004 | 21 years, 7 months, 19 days old |
