Members| Stage name | Korean | Real name | | Position | Birthdate | Korean age | Real age |
|---|
| Taeyeon | 태연 | Kim Tae-yeon |  | Main Vocalist, Lead Dancer, Center, Face of the Group | 1989-03-09 | 36y | 35y | | Tiffany | 티파니 | Hwang Mi-young | | Lead Vocalist, Main Rapper | 1989-08-01 | 36y | 34y | | Seohyun | 서현 | Seo Ju-hyun | | Leader, Main Dancer, Lead Vocalist, Maknae | 1991-06-28 | 34y | 32y |
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