Mood: The mood of the video appears to be youthful, vibrant, and carefree. The theme seems to revolve around self-expression, individuality, and possibly love or relationships, given the 'heart comes first' and '#ThatsMyThing' slogans. The overall emotion conveyed is upbeat and cheerful.

Environment: The setting seems to be a studio or indoor setup with a bright yellow background, suggesting a television show or music video setting. The environment feels modern and trendy, aligning with the 'Favourite Youth Channel' tagline.