1. Preheat oven to 350°
2. Spray bundt pan with cooking spray.
3. With your mixer combine the cake mix, the Mountain Dew, the eggs and the vegetable oil. Mix on low for 30 seconds and then turn speed up to medium and continue mixing for 2 minutes.
4. Pour cake batter into prepared pan and bake 45 minutes, until cake is set and toothpick comes out clean.
5. Let cool in pan for 10 minutes and then transfer to wire rack to finish cooling.
6. When cake is cooled prepare glaze.

Glaze:

1. Mix 3 cups powdered sugar and 1/4 cup plus 1 Tbsp Mountain Dew together in a medium bowl.
2. Stir until there are no more lumps.
3. With cake on wire cooling rack, place a piece of wax paper underneath, so when you pour the glaze over the cake you catch the excess.
4. Pour glaze on top of cake allowing to coat the sides of the cake.
5. Serve when glaze has set.