Forget Mama Bear I’m A Mama Shark Do shirt is a adorable shirt that you should have. Do you know why Baby Shark is so viral? The Baby Shark Challenge, alongside its mandatory hashtag #babysharkchallenge, has become a huge hit among Indonesian netizens. Videos of the challenge are pouring in on YouTube and Instagram, making it a viral dance craze throughout the country. You don’t need to be a parent, a kindergarten teacher or a baby sitter to know this song. It can be easily found on your Facebook newsfeed, your Twitter timeline, or worse, you’ll even have an annoying colleague singing the song and trying to get you to do it too.