Countdown performing their songs "I Don't Know" (몰라요; Mollayo) and "Wishlist" which were included on their debut EP Seven Springs of Apink on April 21, 2011.

[6] In September 2015, she was cast in Naver TV's 8-episode web series Investigator Alice, where she portrayed detective Chun Yeon-joo.

[8] In March 2015, Kim joined MBC's Tutoring Across Generations in place of Lee Tae-im,[9] but the show got cancelled on April 2 after episode 21 due to falling ratings.

[18] To promote the musical, she collaborated with stage member, Onew, to release "A Melody Called You (너라는 멜로디)," as well as the solo song, "Will Such A Day Come?

"[19] Kim alongside groupmate Jung Eun-ji and Jang Hyun-seung, former member of Beast, released the single "A Year Ago" from the project A Cube For Season #White on January 3, 2013, to commemorate the success of their respective groups.