Lovelyz Kei (Kim Ji-yeon) has successfully completed her first solo week. 

Kei, who released her first mini album "Over and Over" on Oct. 8, performed the stage of the title track "I Go" through a week-long music program starting with Mnet's "M Countdown" on Saturday. 

He also performed his song "Pale Moon" to draw attention from fans. This is the only choreographed song in the album, and a mature-feeling performance different from Lovelyz has attracted attention. 

The first solo title song, "I Go," tells a hopeful story that we can move forward and fly higher thanks to the light-like beings who are always around in difficult and weary days as a growth fairy tale that conveys to us in ordinary everyday life. 

Kei (Kim Ji-yeon), who has been recognized for her bright, clear voice and singing voice, is the first member of the Lovelyz to release a mini album and move on to a solo career, raising fans' expectations for the new challenges Kay will present. 

Meanwhile, Kei (Kim Ji-yeon), who successfully wrapped up her first-week music show stage, will continue to be active.