The only way this could be better is if it also played "Endless Love". (+100 internets for catching the reference)
There's no shame in loving cupcakes more than anything else in the world. Go nuts, put cupcakes on everything! What harm can it do other than making everyone around you hungry?
Available at: Modcloth http://www.modcloth.com/store/ModCloth/Apartment/Gifts+Electronics/Have+Eyes+for+My+iPhone+Case+in+Cupcake ($15)