What do u need to get into venue other than proof of concert ticket ? Do u have to wear mask ? Do u have to have proof of shots ?

ID, proof of vaccination or a negative COVID test result

Must show vaccination card and wear a mask.

Yes you must wear a mask and you must show proof of vaccine or CoVid test in past 14 days.

I would say check the website, but when I went on October 20th you had to have been vaccinated a full 14 days prior to the event or show a negative covid test, from less than 3 days before the event.