2015–2017: Unpretty Rapstar 2 and solo debut In September 2015, it was announced that Yezi was part of the lineup of
Mnet's
Unpretty Rapstar 2. The show is the second season of the television series,
Unpretty Rapstar, a competition for female rappers. She was initially disliked by viewers because she kept asking others to repeat themselves; it was later revealed she told Mnet staff her hearing is "not that good". She then criticized the show's producers in her
freestyle rap, which was edited out and not broadcast. Yezi became popular with viewers after her bold performance of "Crazy Dog" in the third episode. She was eliminated in episode eight, but returned for the semi-final after winning a revival round. Two of Yezi's performances were released as singles during the show: "Solo (Remix)" (featuring
Jay Park and
Loco) and "Listen Up" (featuring
Hanhae). Both songs charted on the
Gaon Digital Chart, at numbers 16 and 27, respectively. Yezi was not well known as a member of Fiestar, and had significantly more public recognition after
Unpretty Rapstar. Yezi pre-released a new version of "Crazy Dog" on December 11, 2015. It was produced by Rhymer of
Brand New Music and features
San E, one of the judges on
Unpretty Rapstar. Another song, "Sse Sse Sse", features fellow contestants
Gilme,
KittiB and Ahn Soo-min. On 23 December 2015, Yezi released a promotional single titled "Z-Noid" for the game
Counter-Strike Online and also filmed a music video. On 7 July 2016, Yezi also featured on the soundtrack for
Wanted in a song titled "Shadow" alongside
Jung Chae-yeon. On 8 September, she released a single which called "Chase" with singer
Babylon. The Jazz version was released at 12 noon on the same day. On 24 May 2017, Yezi released her second digital single "Anck Su Namum". This album marked her first producer credit since debut for an album of her own, accompanied by her usual composition and writing credit.
Shinsadong Tiger is the co-producer of this album.
2018–present: Solo career with JG Star On May 25, 2018, Yezi's girl group, Fiestar, disbanded after five years of activity as the members did not sign contracts with
Fave Entertainment again. All members decided to go their separate ways upon leaving the company. Yezi would feature on singles by
Jung In,
YONGZOO, and her former labelmate, NANO (History's Jaeho), before signing with a new management agency. On July 2, 2019, JG Star Entertainment announced that Yezi had signed with their agency. Her first single under the agency, "My Gravity," was released on January 30, 2020. On October 18, 2020, Yezi appeared on a popular Korean show,
The King of Mask Singer, singing songs such as
BTS' "Dynamite" and
Lee Hi's "Rose" to announce her return and wanting to be seen as a multi-talented musician rather than a rapper with just a "strong image." She hopes to collaborate with artist
Yoon Sang someday, inspired by his collaboration with former labelmate
IU. Yezi would go on to subsequently release various singles such as "Home," "Mimew (미묘(迷猫))","Raining All Night," "Secreto," and "No Name," showcasing her versatile talent in rapping, vocals, and dance. Her most recent single, "Acacia," released on June 12, 2022. Yezi participated in writing and composing songs, "Mimew (미묘(迷猫))," "Raining All Night," and, "Acacia." ==Discography==