Luckless wrote in post #17193476
Looks like they're shooting with a 4-5 light setup: 3-4 small flashes near the corners of the room with coloured gels, set a little above head height and pointing down into the crowd. Then one (usually ungeled?) on camera flash set to a narrower spread than is needed for the lens (If not a strict snoot effect).
Agreed.
Look in the wide shots - there are Speedlights on lightstands on the sides of the room, looks like four of them. Put some gels on them, or maybe just set the global white balance to be cool and greenish, or maybe both.
I'm seeing at least five Speedlights, bare on tall lightstands - two on the stage on either side of the DJ booth, two on the left side (facing the crowd), one on the right side (facing the crowd).
Note, not all of the shots seem to have all the Speedlights firing. Whether this was intentional or not, I'm not sure - maybe he was intentionally using multiple groups so he could turn them on and off in sets. Or, maybe the triggers weren't reliable, or maybe the batteries were running low and they weren't recycling fast enough, dunno.
For this type of "grunge" effect, crank up the Clarity in Lightroom, around +50 ought to do it. The cool white balance helps with this effect too. And do a heavy dark post-crop vignette, too.