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Caption: Chaeyoung is from Dunchon-dong, Seoul, South Korea. Her family consists of her parents and younger brother named Son Jeong-hoon. She attended Hanlim Multi Art School for her secondary education and graduated alongside with Tzuyu on February 11, 2019. After a successful audition to JYP Entertainment which took place on June 6, 2012, Chaeyoung trained nearly three years before becoming a contestant on the 2015 show, Sixteen, where she was announced as a member of Twice in the finale. During her trainee years, Chaeyoung appeared in the music videos of GOT7's song, "Stop Stop It" and Miss A's "Only You".