Mood: The mood of this video appears to be energetic and competitive, with a theme centered around a singing contest. The use of bold fonts and bright colors suggests excitement and enthusiasm, while the silhouette of a singer and the microphone icon convey a sense of performance and competition.

Environment: The environment or setting of this video seems to be a modern, urban space with a dark background and ornate blue designs, possibly a concert hall, auditorium, or television studio. The presence of a microphone and a singer suggests a live performance or recording setting.