They performed as M.Pire for the first time at the "2013 Dream Concert" held May 11 at the World Cup Stadium in Seoul[4] ahead of their official debut.
M.Pire eventually made their official debut on August 1, 2013, with six members: Taehee, Yooseung, Haru, Red, T.O, Jerry.
[5] The group officially debuted on August 1, 2013, with their title track "Can't Be Friends With You", a hip-hop dance song, composed by Hong Sung Min and written by Ddori Jang Gun.
On the October 16th broadcast of Channel A's 'Star Family Song' former member LeeU of F.Cuz revealed that he had joined the rookie group and changed his stage name to Lumin.
[7][8] On October 27 an audio teaser of the song ‘On My Mind’ was released through Benjamin Entertainment's Official YouTube account.