In July 2009, shortly after promotions concluded for Super Junior's third studio album Sorry, Sorry, several members of Super Junior-M wrote on their blogs that recordings of a new album for the subgroup has started, and that a few songs were already finished.
Pada Juli 2009, tak lama setelah promosi untuk album ketiga Super Junior, Sorry, Sorry, beberapa anggota Super Junior-M menulis di blog mereka bahwa rekaman album baru untuk sub-grup telah dimulai, dan bahwa beberapa lagu sudah selesai.