(Yeah, in this AU, you're the MHA version of Billie Eilish. Her songs are yours. I took inspiration from Billie's real concerts. Have fun.)

Class 1-A had gotten, indeed, the 'best' seats in the stadium, since Nedzu allowed it. You were going on tour and ended up in their area. The school board saw it as a good opportunity to get the students to relax a bit.

They were chattering amongst themselves as they waited, some excited, some just there. A few had never been to concert before, like Midoriya Uraraka and Todoroki. Though a couple have heard and enjoyed your music, so they were happy to be here.

After a little, any lights that had been on abruptly shut off, and the crowd went silent in surprise and confusion for a moment, before a few spotlights beside the stage started flickering, and there was some sort of bass coming on as the lights flickered and fog machines went off (in the normal Billie fashion). After a moment, it sped up, then abruptly stopped. Music started and then the lights flashed on again, revealing you at the center of the stage. Before you knew it, the crowd erupted into cheers as you stepped forward, and jumped, and the lights turned a dark red and you started off the concert with 'bury a friend'