I was here for emo night. They required either a negative test from the past 72 hours (rapid test or regular would work) or proof of your vaccine card. I brought my vaccine card just because it was the easiest. They did check each person at the door. They should tell you up front when you bought tickets, but if you're still unsure, I would bring a mask and either a test or card just in case.
I believe it depends on the artist that is playing. The washed out concert required masks on unless actively drinking a drink. You will have to confirm with the venue, but I did hear a bouncer tell someone, who didn't have a test, to run to CVS and take a rapid test and bring the results. That was 1/2 hour before the show.
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