Yoo Jeong-yeon (유정연; born November 1, 1996), known professionally as Jeongyeon (정연), is a South Korean singer under JYP Entertainment. She is a member of the South Korean girl group TWICE.
Known For: Acting
Birthday: 1996-11-01
Place of Birth: Suwon, Gyeonggi, South Korea
Also Known As: Jeongyeon, 유정연, 정연, ジョンヨン, TWICE, Twice