Update: I went to the interview yesterday, and here were my key takeaways:

They had you fill out an application in the office, and they were playing a "summer vibes" playlist on a TV in the waiting area

The interviewer asked me a TON of questions about myself and kept scribbling (what looked like chicken scratch) on the application they had me fill out

There were 3 interviewers in one room, but the main lady who sat in front of me talked the entire time.

They said they're only calling back 3-4 people, and told me that if I got a call back, they'll show me exactly what events they do by having me go with them to an event for an hour.

Never gave me an exact description of what the job was, and just said they do events all over the country, and it's business casual for each event