Mood: The mood of the video appears to be energetic and lively, suggesting a fun and engaging content. The theme seems to be a music mashup, likely a compilation of popular songs from 2013. The overall emotion evoked is excitement and anticipation, hinting at an entertaining experience for the viewer.

Environment: The setting of the video seems to be a dark or dimly lit space with a focus on bright lights, possibly a nightclub or a concert setting. The background is dominated by rows of round lights, creating a vibrant and dynamic atmosphere.