Aunt Lillian's Lemon Pound Cake (Margaret Ann)

1 yellow Duncan Hines Cake Mix 1 Jello instant lemon pudding mix 2/3 cup oil 2/3 cup water 4 eggs 1 t. lemon flavoring or vanilla Bake at 325 for 45 to 50 minutes. When done pour icing over cake while warm.. Icing 2 cups powdered sugar 2 T. butter 2 T. milk 1/2 T. orange juice like Minute Maid (this is the secret that made her cakes so good.)