| Full Name | Kang Hye-yeon |
| Stage Name | Hyeyeon |
| Native Name | 강혜연 |
| Birthday | December 8, 1990 |
| Age | 34 years and 6 months old |
| Zodiac Sign | Sagittarius |
| Birthplace | Incheon, South Korea |
| Height | 5’5″ (165 cm) |
| Weight | 105.8 lbs (48 kg) |
| Blood Type | A |
| MBTI | ENFP-A |
| Education | Bakmun Girls’ High School |
| Languages | English, Korean |
| Group | BESTie (2013-2018) EXID (2012- April 16, 2012) |
| Social Media | Instagram: [@yoni2_] Twitter (X): [@hyeyeon2ya] |