Preheat oven for cupcakes.
Mix cake according to package directions.
Place cupcake liners in cupcake baking pan and spritz with non-stick cooking spray.
Fill each cupcake liner one-third full. Sprinkle 1 teaspoon of drink mix over the cake batter. Then, add more batter until cupcake liners are two-thirds full. Sprinkle additional powdered drink mix on top if desired.
Slightly stir the the cake mix with a toothpick in each cupcake liner.
Bake according to package directions. Cool and top with frosting of choice.