Lemon Supreme Cake

1 Duncan Hines Lemon Supreme cake mix
1/2 c. oil
4 eggs
1 1/3 c. water
1 sm. pkg. lemon jello

FROSTING:
1/4 c. lemon juice
Powdered sugar

Add ingredients to dry cake mix. Bake at 350 degrees for 30 minutes. Frost right out of the oven by mixing lemon juice with enough powdered sugar to make a smooth consistency. Cool.