One representative stated, “The song we’re releasing is something that 2AM has never shown before and is a brand new type of music.”[1] A portion of the song was revealed in the first episode of 2AM's new reality show "2AM DAY" on March 10,[2] where the members playfully sing along to it in their car.

A leaked version of Part 1 of the music video was released on March 15, having been recorded by camera at 2AM's subway showcase.

[4] As opposed to their previous singles which were ballads, dance choreography was performed to the song.

However, due to the ROKS Cheonan sinking near Baengnyeong Island, all music shows were canceled.

[5] Member Jinwoon expressed his deep sympathies for the families of the missing people in the group's acceptance speech, asking the public to pray.