Ji Su Yeon is a South Korean singer, dancer and former member of WEKI MEKI (위키미키). She graduated from Hanlim Entertainment Arts High School and later obtained a bachelor's degree in Practical Music from Baekseok Arts University. Before debuting, she was a trainee at CJ E&M and WM Entertainment.
She debuted in August 2017 as the group's leader and main vocalist with their first EP, "Weme". She wrote and composed several songs included in the group's discography and has participated in several OSTs.
In August 2024, Fantagio (판타지오) announced the group's disbandment as five members did not renew their contracts and left the agency. She also left Fantagio in November 2024 and is currently an independent artist.