Here is a description of the video: The video shows a DJ from the back, mixing music at a club or event. The DJ is wearing a black sweatshirt with the number 99 and "BTS" on the back. The DJ is using a digital mixer and a laptop with DJ software visible on the screen. The lighting in the room is dark, with red and orange light highlighting the DJ and their equipment. Other people can be seen in the background, suggesting the DJ is performing for an audience.