Jodi Benson is at every one of these things. Not everyone in attendance is a repeat guest so there are other fans who haven't seen her sing live. But I wonder if there's more to that session, having Jodi sing is not usually its own session but rather the closeout of something else. There could be announcements interwoven with singing like at the Honda Center last year, but don't get your hopes us!
Last time, the surprise event at EPCOT was Saturday night so I think this year that's the Typhoon Lagoon after hours event. Probably couldn't be a surprise because people need to know to pack swimwear?
I'm looking at the 2023 and 2021 schedules and I feel like a lot of it is similar.