K-Much featured in Crayon Pop's solo concert, 2nd POPCON in Tokyo, performing a remix of three songs.

The album consists of three tracks: "I'm Sorry", "What Should I Do" (나 어떡해), and the single, "Good to Go" (뭣 모르고, lit.

A story version music video of "Good to Go", featuring Crayon Pop's Ellin, was uploaded to YouTube on 6 January, a day before the album's release.

K-Much made their official debut stage on 8 January 2014, performing "Good to Go" on MBC Music's Show Champion.

[10] Loki was not in the music video, and Chrome Entertainment later confirmed he had left the company to pursue an acting career.

They asked fans to choose one of the three candidates named : Be.A (Be Artist/Be.A/ Become an artist), Champ (Become the Idol Champion) and B.O.T (Boy on top).

[17] On March 2, it was announced that Boys24 contestant previously known as Park Woo-young joined the group with the stage name BomB.

On August 27 Milly posted on his Instagram that he will no longer be promoting as a member due to music differences and the direction the group is going in.