Preheat oven to 350 degrees F (175 degrees C), grease and flour a 10 inch Bundt pan.
Combine cake mix and pudding mix in a large bowl. Add beer and vegetable oil and mix lightly. Add 4 eggs. Beat at high speed until mixture is thick, creamy and smooth. Pour into greased and floured Bundt pan.
Bake at 350 degrees F (175 degrees C) for 55 minutes. Cool in pan for 10 minutes, then turn out onto a wire rack and cool completely. Frost as desired.
