Okay, we don't want to freak you out, but... there's a hole in your tummy.
Don't worry, we're pretty sure you haven't been shot or stabbed. In fact, it's a very natural, normal thing that everyone has called a 'belly button.' Even better news is that the comedic duo of Rhett & Link have created a song in its honor.
Take a listen to "It's My Belly Button" above... it explains everything.