Baby Shark 4th Birthday Card With over 2 billion views on YouTube, the hit song â€œBaby Shark doo doo doo doo doo dooâ€ has been a smash hit around the world with toddlers, kids and adults alike! Danilo have produced this official Baby Shark greeting card range which is fully approved by Baby Shark creators Pinkfong. Enjoy all the fun of the song by sending someone special this bright, fun and colourful Baby Shark Age 4 Birthday Card. The message inside reads "You are SOME-FIN SPECIAL! Happy 4th Birthday" Buy this official Baby Shark Birthday Card today and recieve Delivery. Worldwide delivery also available on this birthday card.