Chonnasorn Sajakul (Thai: ชลนสร สัจจกุล; RTGS: Chonnason Satchakun; born November 18, 1996), better known by the mononym Sorn (Hangul: 손; Thai: สร), is a Thai singer based in South Korea. She is best known as the winner of K-Pop Star Hunt Season 1 in 2011, and later as a member of the South Korean girl group CLC under Cube Entertainment.
Ever since she was a child, her mother allowed her to have vocal lessons to achieve her goals in becoming a singer. In 2011, she competed in tvN’s K-Pop Star Hunt and was named winner of the first season.
In 2013, Sorn appeared in a documentary called Seoul: Capital of K-Pop (Inside K-Pop) where she talked about her trainee life and what it involved She also did a collaboration song with G.NA called “Because You Are The One,” sung in English.
Sorn was revealed as the first member of the girl group CLC. The group officially debuted on March 19, 2015 with their debut extended play, First Love.