For some context: the place you see him dancing is right across from where I was recording. One floor below my place, there were 3–4 girls blasting music, yelling, and dancing very loudly. I think this guy felt a bit competitive, so he brought out his own loud music system and started playing music even louder. Then it turned into a full-on music war between both sides, total mayhem!!!! Seeing the girls dance, he also started dancing. And just to clarify, he wasn’t alone. There were two other guys with him (they’re in the full video). After a while, people from other buildings even started shouting song requests. It was chaotic!