Add all ingredients for cake and blend. Pour into pans and bake. Bake at 350 degrees according to the box directions for the cake.
For icing, combine the cool whip, pineapple and pudding powder. Note: I put as much juice from pineapple to give it a good consistency. Not runney. Stir gently.
After your cakes cool, ice between each later and then the whole cake. There's a lot of icing, so be generous. Cool cake in fridge before serving. If desired use decorating tool to decorate top with designs. Then sprinkle on coconut.(optional)