Unit Performances from Episode 4 [uploaded by Mnet Official on Youtube]

Unit White - TWICE's "Cheer Up"

Unit Sky - WINNER's "Sentimental"

Unit Yellow - Block B's "HER"

Unit Blue - GFriend's "Rough"

Unit Green - VIXX's "On And On"

Unit Red - GD x Taeyang's "Good Boy"

Unit Purple - Sistar19's "Gone Not Around Any Longer"

BTS Photos from EP 4

Choi Seonghwan

Choi Jaehyun and Jo Yunhyeong

Lee Haejun

Yoo Youngdoo

Tak Jinkyu

Lee Sangwook

Lee Changmin

Kim Sunghyun

Lee Insoo

Hwang Inho

Kang San

Park Doha

Kim Taeyeon

Lee Louoon

Kim Hongin

Lee Hwayoung

Jeong Yeontae

Kim Taedong

Chae Hocheol

Han Hyunuk and Alex Moon [sorry had to combine them because wattpad only allows up to 20 photos maximum :D]

[photo cr. 서년24 Boys24 on Facebook]