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Choi San, known mononymously as San, is a South Korean singer, dancer and actor under KQ Entertainment. He is a member of the boy group ATEEZ. He made his acting debut in the 2021 KBS drama Imitation with bandmates Seonghwa, Yunho, and Jongho. He contributed his vocals to the official soundtrack of the drama as a member of Sparkling, a fictional 4-member group. In addition to his work with ATEEZ, San serves as a global ambassador for Dolce & Gabbana.