Hi there, Rachael!
Your best bet is to surf on over to the
Disney Parks Web site.
Each of the four Parks has its own page, including a calendar (which goes several months out) featuring operating hours, parade and showtimes, and special events.
Also, keep an eye on the
Disney Parks Blog. That's a great resource for breaking news and information.
Depending upon the Park/s you'll be visiting that day, you're sure to get to enjoy special fireworks, musical performances, and character appearances.
If you'd like, drop me a note with your particular itinerary, and I'd be happy t help get you more specific details.
See you later, celebrator,
-Deborah B.