The stage that's surrounded by chair backs and has a giant tea pot is the the Mad T Party Band and the DJ. The one under the card t-pee is for the cards dance team and Who Are You. Every night throughout summer and weekends the rest of the year is The Mad Tea Party.
Live music with Alice, Mad Hatter, Cheshire Cat, Caterpillar, Door Mouse, and the March Hare. In between sets the White Rabbit mans the DJ booth. http://www.youtube.com/watch?v=zUEzJu5S5Fo
Who Are You is, for lack of better words, a dancing slinky. Has nothing to do with the Alice in Wonderland theme, but still you're mesmerized and can't look away. http://www.youtube.com/watch?v=zUG2HXSfOgQ
That stage is also used for a variety of community groups and other entertainment that isn't usually advertised. My DD performed there a number of times this past summer and will be doing so again this next summer. You can sometimes catch a real gem and other times the shows are typical of what you would find at the local fair.
Sounds like you're ready to have some fun at the Mad T Party. One thing I would suggest is to buy the GLow With The Show ears. We bought them when we were there last year for WOC and when we went over to T Party our ears synced to the music that was being played by the DJ.