[Woops! He didn't notice that, but it appears they're both in their dressings rooms doing some preparation. Unfortunately, Uenoyama was concentrating so much, he lost his other bandmates.]

Maybe they went to get food?

[It's plausible. Pre-performance jitters always gave Crow the munchies. Anyway, Crow doesn't mind talking about his music with a fellow musician. He gives the other a toothy grin.]

Yeah! I'll be playing the guitar and singing, but Ren was great enough to set up support for me too. I'm not used to performing without my band, but I've got to do them proud, y'know!

[Crow then gestures to Uenoyama's guitar.]

I heard you from my room, you're not bad with that guitar. Although, not as good as me!