1 pkg. yellow cake mix (without pudding mix)
1 (11 oz.) can mandarin oranges, undrained
4 eggs
1/2 c. vegetable oil

Combine cake mix, mandarin oranges, eggs and oil. Beat 2 minutes at high speed. Reduce to low speed, beat 1 minute. Pour batter into 3 greased and floured 9 inch round cake pans. Bake at 350 degrees for 20 to 25 minutes. Cool in pans 10 minutes. Remove layers from pans and let cool completely.

ICING:

1 (15 oz.) can crushed pineapple, drained
1 (9 oz.) carton frozen whipped topping, thawed (Cool Whip)
1 (3 3/4 oz.) pkg. vanilla instant pudding mix

Combine all ingredients. Beat 2 minutes. Let stand 5 minutes or until mixture is of spreading consistency. Spread mixture between layers, top and side of cake. Chill 2 hours before serving. Store in refrigerator.