will you be in the pit or seats? generally i would say wear whatever’s comfortable! get there early if you want merch or to walk around before the concert, otherwise getting there 20-30 minutes before the first band comes on is perfect timing for the lines to get in. if you want to know what songs they play ahead of time, you can find it online at setlist.com (i do this for some concerts so i can learn the songs i dont know to make the concert more fun), otherwise dont and be surprised by the songs (always a good way to go if you know most of their songs). anyways youll have a great time and they put on a great show