Mood: The mood of the video appears to be intense and dramatic, with a sense of conflict or rivalry. The theme seems to revolve around a choice or a decision, as indicated by the text 'PICK A SIDE'. The overall emotion conveyed is one of tension and possibly even danger.

Environment: The environment or setting of the video is likely an urban or possibly a nightclub setting, given the presence of a crowd in the background and the dimly lit atmosphere. The split color scheme of blue and red may indicate a contrast between two different worlds or groups.