Pig Lickin' Good Cake

1 Yellow cake mix
1/4 cup sugar
4 eggs
3/4 cup oil
1-10 oz. can of mandarin oranges with juice
Combine all ingredients. Pour into 9X13 pan. Bake at 350 degrees for 30-35 minutes or until done. Let cool and top with frosting.

Frosting:
1-8 oz. can of crushed pineapple (drained)
1-8 oz. tub of cool whip
1-3 oz. box of instant vanilla pudding
Combine all ingredients.