Hi there Ashley!
Lovely to have you back again!
I'm so glad to hear that you're considering attending Mickey's Very Merry Christmas Party. It's such a great, family event. I get goosebumps at the mere thought of standing on Main Street U.S.A. in the falling "snow" while Cinderella Castle glistens in the background... It's a magical way to spend an evening for sure!
Tickets for Mickey's Very Merry Christmas Party are separate. When you purchase them online or by phone, you'll have the option to print at home (and bring the printed sheets with you on vacation) or to pick them up at Will Call (Guest Relations/Ticket Desk at Magic Kingdom or at your Walt Disney World Resort's Front Desk) or to have them mailed to you at home in advance. They're not able to be added to your Key to the World Card at this time ...
although with all the new 'magic' that Disney is currently working on with MyMagic+, My Disney Experience app, MagicBands and more ... that very well could change between now and the time of the ticket release for 2013's Christmas parties! It's hard to know for sure right now. It's all very exciting. If you haven't already heard about how Disney is
"Taking the Guest Experience to the Next Level" in 2013, be sure to check out this great article on the Disney Parks Blog! I've included a link to it for you just above.
If you have additional questions for me ... come on back! I'd love to hear from you again Ashley!
Lovely chatting with you.
Wishing you a simply Magical time at Walt Disney World!
Kirsten