| idol_id | 1924 |
| Selca owner | atheart_katelyn |
| Pop type | K-pop |
| Stage name (romanized) | Katelyn |
| Stage name (original) | 케이틀린 |
| Real name (romanized) | Katelyn Tan |
| Real name (original) | Katelyn Tan |
| Birth date | 2007-07-24 (age 18) ▲ ▼ |
| Chinese zodiac sign | 🐖 Pig |
| Western zodiac sign | ♋|♌ Cancer or Leo |
| Hometown | Manila |
| Height | 162.0cm (5'4") ▲ ▼ |
| Weight | |
| Blood type | |
| MBTI | INFJ |
| Debut date | 2025-08-13 (2 months ago) ▲ ▼ |
| Country of origin | 
Philippines |
| Name | Company | Fandom | Debut date | Disbandment date | Current member | |
|---|---|---|---|---|---|---|
|
AtHeart (앳하트) | Titan Content | 2025-08-13 | Yes |