At night, a crowd of people are dancing in the street near a vehicle with a large sound system

At night, a crowd of people are dancing in the street near a vehicle with a large sound system. A light show consisting of beams of light and disco balls on the vehicle illuminates the crowd. A few people are waving Indonesian flags. Some of the crowd are wearing matching black t-shirts and festive headwear. Several buildings, some brightly lit, are visible in the background.