In a medium bowl, combine cake batter, melted butter, and eggs. Mixing until smooth & well blended.
Pat and press the mixture evenly into the bottom of a greased 9×13 pan. Put aside.
In a separate large bowl, whisk the cream cheese and blend. Add the eggs and beat until smooth, 1 or 2 minutes. Add the powdered sugar and continue to whisk until well blended.
Pour over crust and bake at 350°F for 25-30 minutes or until cooked through. Do not overcook.
Once baked, remove from the oven and allow to cool completely before cutting into bars.