| idol_id | 884 |
| Selca owner | |
| Pop type | K-pop |
| Stage name (romanized) | Seongyeon |
| Stage name (original) | 성연 |
| Real name (romanized) | Bae Seongyeon |
| Real name (original) | 배성연 (裵成嬿) |
| Birth date | 1999-05-25 (age 24) ▲ ▼ |
| Chinese zodiac sign | 🐇 Rabbit |
| Western zodiac sign | ♊ Gemini |
| Hometown | Seoul |
| Height | 163.0cm (5'4") ▲ ▼ |
| Weight | 46.0kg (101lb) ▲ ▼ |
| Blood type | A |
| Debut date | 2017-03-21 (7 years and 1 month ago) ▲ ▼ |
| Country of origin | 
Korea, Republic of |
| Name | Company | Debut date | Disbandment date | Current member | Roles | |
|---|---|---|---|---|---|---|
|
(프리스틴)
|
Pledis | 2017-03-21 | 2019-05-24 | Group disbanded | Main vocal |