Why it worked
The video likely worked due to its visually striking presentation of a large-scale performance contrasted with a smaller, relatable group replicating the trend. The use of synchronized dancing and a dramatic backdrop would have captured viewer attention.
Summary
The video shows a split screen. The top screen displays a large-scale performance with many people dancing in a stadium-like setting with a mountainous backdrop. The bottom screen shows a smaller group of people dancing on a set of stairs, seemingly mimicking the performance above. The video appears to be showcasing a trend or performance.