To answer some questions posted here . . .
Yes, it HAS to be an angel food cake mix
The texture is very moist and spongecake-like, not your typical cake texture. It's really very, very good!
You do not follow directions on the box, you simply add 1 can of crushed pineapple (juice and all) to the mix in a bowl. Stir it together (and add anything like cherries, coconut, etc IF desired), then pour into pan and bake.
Hope this all helps you out some!