Member ages
Billlie Member Ages and Birthdays
Billlie member ages and birthdays ranked oldest to youngest, from Moon Sua at age 26 to Haruna at age 20.
Oldest to youngest
| Rank | Member | Age | Birthday | Position |
|---|---|---|---|---|
| #1 |  Moon SuaMember | 26 | Sep 9, 1999 | Main Rapper, Lead Vocalist |
| #2 |  SuhyeonMember | 26 | Jan 15, 2000 | Leader, Main Vocalist |
| #3 |  HaramMember | 25 | Jan 13, 2001 | Main Vocalist |
| #4 |  TsukiMember | 23 | Sep 21, 2002 | Vocalist, Dancer |
| #5 |  SheonMember | 23 | Jan 28, 2003 | Rapper, Vocalist |
| #6 |  SiyoonMember | 21 | Feb 16, 2005 | Vocalist, Dancer |
| #7 |  HarunaMember | 20 | Jan 30, 2006 | Dancer, Vocalist |