Pineapple Right Side Up Cake

1 yellow cake mix
1 – 20 oz can pineapple, crushed
½ C sugar
1 –9 oz cool whip
1 small pkg. coconut (Optional)
2 small pkgs. instant vanilla pudding

Bake cake and let cool.
Punch holes in the top of the cake with a wooden spoon handle.
Bring pineapple and sugar to a boil. Pour over the cake.
Make the pudding and spread on the top.
Spread Cool Whip on the pudding.
(I like to mix the pudding and cool whip and then spread it on top.)
Sprinkle with coconut.