Mood: The mood of this video appears to be energetic and lively, evoking feelings of excitement and joy. The theme seems to revolve around a collection of popular party songs from 2015, suggesting a fun and vibrant atmosphere.

Environment: The environment or setting of the video likely takes place in a nightclub or a similar party venue, given the context of party songs and the woman's attire and pose. The background's colorful and dynamic lighting suggests a lively and festive setting.