Check out how this crew did below and let us know if there are any other crews you want us to check out! They wondered who took the pictures and speculated that it could be staff or even idols present during the event.
While the choreography and the video seem bright and positive, the theme of the lyrics is actually one of loneliness and despair.
The video has already racked up over 70 million views after it premiered 3 days ago.