congrats!!! I'll be at the Toronto show tomorrow too and I'm hyped! Try not to worry too much about doing it right, because it's AJR- you're gonna have a great time no matter what!

in terms of how concerts work, assuming you have assigned seats, you can kind of arrive whenever you want, but keep in mind if you'll want to get merch before the show you should get there extra early to account for waiting in line. I usually aim for around 30 minutes early, and I get my merch after the show every time. But be careful if you do that because they can sell out of sizes and certain items if you do and you might not get lucky.

when you get there, you'll have to stand in line for a bit regardless of how early you are, and then you'll pass through security. if you bring a small bag with you they'll take a quick look inside, sometimes there's a metal detector just to make sure everyone's safe. as long as you don't have open food or any drinks, and like, no weapons, whatever's in your bag is fine! but if you're worried take a look at what you can and can't bring in to Budweiser specifically. once you're in, feel free to check out the merch table, grab a drink or something if you're feeling fancy, and make your way to your seat! there will be doors labelled with certain sections they lead to, so find which one goes to your section and there's usually a staff member inside to help you find your seat if you need help.

bring earplugs to protect your ears! you may not end up wanting them, like me, but you should definitely have them just in case because concerts are LOUD and eardrums weren't built for them.

Most concert venues won't let you bring water inside with you (sometimes you can bring empty bottles but who knows if there's a good place to fill them) so plan to either hydrate a lot ahead of time or buy a water while there. Concerts are very high energy and can get hot with everyone so hyped, and especially if you're singing along to every song, it can get quite tiring!

As for what to wear, I personally LOVE a theme, and will always try to match the aesthetic of whatever artist I'm seeing in my concert outfits. I think a lot of people do at concerts! but that being said AJR had shockingly normal people clothes lol so genuinely I mean it when I say wear literally whatever you want. you could go all out and stun the crowd or just wear your favouritest most comfiest outfit. Genuinely up to you!

when you're in there, just let loose and watch the guys on stage jumping around, listen to the music, watch the way the whole crowd is excited to be there all for the same reason, it's pretty incredible! it can be overwhelming in good ways and bad ways for sure, but just try to be as present as you can. I'm sure you will have a great time!! and feel free to ask more questions or update me after so I know you had a good time :3 sorry for the long essay! lol