When concert-going starts up again, you might have to provide more than your ticket to get in.
Ticketmaster and its parent company Live Nation want to make sure live music venues don't turn into super spreader locations.

BILLBOARD reports that Ticketmaster plans a system that will require concert-goers to have received a COVID vaccination or a negative COVID test result within 1 to 3 days of the performance. 

Ticketmaster also wants to eliminate paper tickets to cut down on hand-to-hand contact. 
More specifics won't be available until a vaccine has been approved and made available to the general public.