In a large bowl combine cake mix, pudding, eggs, oil and 7 UP.
Mix until completely combined.
Evenly pour mixture into a silicone bundt pan.
Bake in microwave on high setting for 9 minutes.
Test for doneness using a toothpick. If cake is not done, microwave for 1 minute increments until fully baked.
Remove cake immediately to a cake plate.
Allow to cool completely.
Microwave frosting for 10 seconds until it's smooth.
Drizzle frosting over cake and serve.