1 pkg. Duncan Hines yellow cake mix
4 eggs
1/2 c. oil
1 can mandarin oranges (with juice)

Frosting:

9 oz. Cool Whip
1 pkg. pineapple instant pudding
15 oz. can crushed pineapple (save juice)

Mix ingredients together and pour into 3 (9-inch) layer pans.

Bake at 350°F for 20 minutes. Frosting: Pour reserved pineapple juice evenly over baked layers. Mix Cool Whip, pudding mix and pineapple. Spread on cake. Store frosted cake in the refrigerator.