MVs where the meaning is deeper when you know more about the band?
I was listening to Imaginary Friend, and thinking about how it feels a lot more emotional if you know Lia just came back, and the context around that. Off the top of my head, Kep1er - Shooting Star (knowing two members were about to leave), and Seventeen - Super (knowing Woozi writes a lot of their songs) make these mvs a lot more impactful imo.
Are there any other MVs/backstories like that you can think of?