Seol Ha Yoon (설하윤) is a South Korean trot singer and actress. She graduated with a bachelor's degree in the Department of Applied Music at Baekje University of the Arts. She was an idol trainee for 12 years but was never able to debut and had to spend one extra year unemployed as she was still tied to her contract, so she took on several part-time jobs including managing PC rooms, cafés, as a waitress, and as a saleswoman at department stores. She decided to become a trot singer and made her official debut in 2016. She has also began acting and singing OSTs for several dramas.