The "Baby Shark" train just keeps on rolling. The YouTube video of the popular children's song is now the most-watched YouTube video ever dethroning "Despacito." In total, the video has been viewed 7.06 billion times. Just in case "Baby Shark " is still popular in your home, a cartoon is coming to Nickelodeon next month with a holiday special and then a series in 2021. Have you ever used "Baby Shark" to keep your child calm? What is your favorite children's song?