Can I bring a bag or my luggage to a K-pop concert?

A normal day bag is fine, but big suitcases usually are not, and most Korean concert venues do not run a cloakroom you can count on. If you are coming straight from the airport or checking out the same day, stash the bag first: subway-station coin lockers near the venue, or a bag-storage app, are the usual fix. Security may also check inside bags and turn away pro cameras or outside drinks, so travel light on show day.