Whether you love the song or it drives you nuts, you have to admit that this Baby Shark costume is pretty cute! In gorgeous plush pink polyester, and padded with polyurethane foam, the all-in-one outfit has a zip fastener on the side and Velcro on the seam for easy nappy-change access. The attached hood has shark eye detailing and the open front creates the impression of a shark's mouth with a jaw full of white felt teeth. To add to the "Mommy Shark doo doo doo doo doo" look, there's an attached tail and dorsal fin, and 3D fins on either side over the arm holes. Inside one arm fin, there's a sound chip that requires 3 x button cell batteries (demo batteries included) so your little one has everything they need for hours of singing shark fun!