I've no idea what this guy was singing about but he was going at it all-in. You can see the sweat on his brow – but then this is semi-tropical malaysia. I was struck by this guy's gold jacket and the way it's reflecting some of the red stage lighting. Clearly, from the shadow on the rear wall, the main light here is a spotlight out front.
I don't recall any real breaks between the performers and there was no curtain out front between the performers and the audience. All the singers had the same backing drummer and guitar and bass players.