Very bright rainbow cupcakes

These very bright, fun rainbow cupcakes are from the blog Ginger Snaps, in a guest post by Holly of Mama Clucks. She writes:

I like this recipe because it makes a thick batter, which is good for getting a better differentiation in the color stripes when baked. (ETA: I highly suggest using Greek yogurt vs plain yogurt. It is creamier (more like sour cream) and has a better flavor and consistency.)

First we mixed up the batter, then divided it into five bowls. Each bowl was 1 cup. Then we mixed in Wilton Icing Colors to get really vibrant, pretty colors for our rainbow.