| Hyolyn | ||
 Promotional photo for Lonely | ||
| Basic Information | ||
| Birth name: |
Kim Hyo-jung (김효정) | |
| Birth date: |
December 11, 1990 | |
| Birth place: |
Gwangyo-dong, Michuhol-gu, Incheon, South Korea | |
| Occupation: |
Singer, songwriter | |
| Height: |
161 cm (5'3") | |
| Weight: |
45 kg (99 lbs) | |
| Blood type: |
B | |
| Agency: |
bridʒ (Bridge) (2017-present) | |
| Associated acts: | ||
Kim Hyo-jung (김효정), known by her stage name Hyolyn (효린; formerly romanized as Hyorin), is a South Korean singer and songwriter. She is the leader of the girl group SISTAR.