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For other people known as 'Jiyoon', see Jiyoon.

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.


2018: Polaris Junior[]

Sometime in 2018 or earlier, Jiyoon became a trainee under Polaris Entertainment and eventually became a part of their trainee group Polaris Junior.[citation needed] She left the agency at some unknown point in time.

2021: Girls Planet 999[]

On July 7, Jiyoon was confirmed as a upcoming contestant on Mnet's newest reality show, Girls Planet 999, along with the other participating trainees, through the prologue trailer.[1] Her official profile was released on July 17.[2][3] The show began airing on August 6. Unfortunately, she was eliminated in the second round of eliminations with her final rank being K12.

On November 8, she revealed on Instagram that she is currently in KM Entertainment.[4]

2022: Debut with ICHILLIN'[]

On October 25, KM Entertainment announced that she will be joining the girl group ICHILLIN' on November for their upcoming comeback.[5] She officially debuted with the group on November 10, 2022, with the release of their single album "My Time".



Participation releases[]


Reality shows[]


  • Her MBTI personality type is ENFP.[3]
  • Her hobbies include listening to music, dancing, and walking.[3]
  • Her specialties include her vocals, empathy, and composing a melody.[3]
  • Her motto on Girls Planet 999 is "A lovely rabbit that will jump around inside your heart".[3]


Main article: Jiyoon (ICHILLIN')/Gallery


Official links[]