Hi Lani,
Thank you for the compliment and it is our pleasure to be able to help you plan your trip!
The Disney Dining Plan is indeed accepted at Disney's Spirit of Aloha Show.
Two (2) table-service meal credits are required if you have the regular or deluxe dining plan and one (1) table-service meal credit is required for those guests with the premium or platinum dining plan.
You are not required to prepay for this dinner show or any other dining experiences if you are on any of the dining plans. You simply click on the link at the bottom of the reservation box which states 'I want to use my dining plan to book reservations' - see
HERE
You will then be asked for your confirmation number, last name and arrival date.
Once you have entered this information you will be able to to make your dining reservation without having to pre-pay.
Wishing you a magical trip!