Baby shark doo doo doo doo doo! Baby shark doo doo doo doo doo! Baby shark! When a song as popular as Baby Shark is, you know you'll have a costume for it later on. This officially licensed blue Daddy Shark romper features a sound chip that plays a portion of the Baby Shark song! This is great on its own, but could be even better wioth the other costumes and accessories available in our store!