The single was released after the third episode of The Call covering the second out of the five projects. It features four teams.
The theme choosed for this project was "This Moment, This Song" (이 순간 이 노래).
The team ShinBe was elected as the "Best Couple" of the project with their song "Lullaby".
|Ilee with Bumsoo||Kim Bum Soo|
Taeil (Block B)
|Men's Spring||Kim Jong Kook|
Hwang Chi Yeul
|ShinBe||Shin Seung Hun|
- "Lullaby" - 3:49 (ShinBe)
- "Fall Away" - 4:13 (Ilee with Bumsoo)
- "Rainy Day" - 3:38 (Blue-star-1)
- "The Miracle of One Percent (1퍼센트의 기적이라)" - 3:35 (Men's Spring)
- "Lullaby" performance video
- "Fall Away" performance video
- "Rainy Day" performance video
- "The Miracle of One Percent" performance video