Step 1

Preheat oven to 350°F. Spray pan with vegetable pan spray.

Step 2

In a large bowl, or in the bowl of a stand mixer, combine cake mix, pudding mix, eggs, water and oil. Beat at medium speed with an electric mixer for 2 minutes. Pour into the prepared pan.

Step 3

Bake for 50-55 minutes or until toothpick inserted in the center comes out clean. Cool in pan for 10 minutes; remove from pan and place onto wire rack to cool completely.

Step 4

In a small bowl, whisk together powdered sugar and milk until sugar is completely dissolved. Divide glaze into 6 separate bowls.

Step 5

Using icing colors, tint glaze as follows:1 bowl pink (use Pink Icing Color)1 bowl yellow (use Lemon Yellow Icing Color)1 bowl green (combine Kelly Green and Sky Blue Icing Colors)1 bowl teal (combine Sky Blue and Kelly Green Icing Colors)1 bowl periwinkle (combine Violet and Sky Blue Icing Colors)1 bowl white

Step 6

Prepare 6 decorating bags, separately, with pink, yellow, green, teal, periwinkle and white glaze. Cut small tip off each bag.

Step 7

Pipe drops of white glaze over top of cake. Alternate piping colored glaze and white glaze, allowing icing to drip down sides of cake. Continue filling in gaps. Tap cake on surface to help icing drip, if needed.