Member ages
ACID EYES Member Ages and Birthdays
ACID EYES member ages and birthdays ranked oldest to youngest, from YooYeon at age 25 to SooMin at age 18.
Oldest to youngest
| Rank | Member | Age | Birthday | Position |
|---|---|---|---|---|
| #1 |  YooYeonMember | 25 | Feb 9, 2001 | Leader, Visual |
| #2 |  NaKyoungMember | 23 | Oct 13, 2002 | Vocalist, Rapper, Dancer |
| #3 |  SeoYeonMember | 23 | Aug 6, 2003 | Vocalist |
| #4 |  ChaeYeonMember | 21 | Dec 4, 2004 | Vocalist |
| #5 |  YuBinOn hiatus | 21 | Feb 3, 2005 | Main Dancer, Vocalist, Visual |
| #6 |  JiWooMember | 20 | Oct 24, 2005 | Main Vocalist |
| #7 |  HyeRinMember | 19 | Apr 12, 2007 | Main Dancer |
| #8 |  SooMinMember | 18 | Oct 3, 2007 | Vocalist |