The ‘Night Letter’ Challenge, personally led by the original artist IU

IU personally participated in the 'Night Letter' challenge, which has recently been garnering much attention, eliciting a reaction from fans. Showing bright energy in a way that contrasts with her usual calm image, she even drew attention by performing a 360-degree turn. As the original artist participated in the challenge herself, it must have been an even more special gift for the fans, and it makes us realize once again the enduring popularity of 'Night Letter'.