Who is the superhero on these colorful, two-sided kids birthday invitations? Your birthday boy is the star, and you can change the colors of the super hero's hair, skin, and costume colors to look just like him at his superhero best! The blue background and pattern on the back in primary colors stay the same. Cartoon bubbles set the stage, and Calling All Superheroes lets his friends know what's in store. All the other text is editable. Let your little guy have fun choosing the colors for his superhero, and then just add the party details to finish personalizing these kids birthday invitations.