[1] In October 2011, GP Entertainment revealed that Lee would be joining their new girl group JQT, under her birth name Jin-kyung, upon departure of one of the members, Minsun.

[2] She took on a modelling gig alongside Teen Top for uniforms in November 2012, and was said to be debuting again in another girl group in December 2012, but plans did not follow through.

[5] Lee also participated as a contestant in CCTV's singing show Finding Liu San Jie, and the New Year Gala.

Her breakthrough role came in June 2016, where she portrayed a gold digger in OCN's hit drama Squad 38 alongside Seo In-guk and Ma Dong-seok.

[12] In July, she starred in tvN's remake of the American blockbuster television series Criminal Minds, where she played the Korean version of JJ's character.