Jeong Ji-yoon
Sep 15, 2000 - South Korea
Jiyoon (Korean: 정지윤; Chinese: 鄭智赟; Japanese: チョン・ジユン) is a South Korean singer under KM Entertainment. She is a member of the girl group ICHILLIN'. She is also a former trainee of Polaris Junior.
She is best known for participating in Mnet's reality survival show Girls Planet 999.