| Full Name | Kay Song |
| Pinyin | Sòng Zhāo Yì |
| Date of Birth | 27 October, 1995 |
| Place of Birth | Zibo, Shandong, China |
| Origin | China |
| Ethnicity | Han Chinese |
| Height | 5' 4" (163 cm) |
| Occupation | Actress, Singer, Athlete |
| Other Names | Song Zhaoyi, Song Zhao-Yi, Zhang Xi |
| Alma Mater | Southwest Jiaotong University, Chengdu, Sichuan, China |
| Debut Date | 2015 |