Seven years after posting “Baby Shark” on YouTube, Pinkfong CEO Kim Min-seok looks to expand and replicate its success in webtoons, as well as live shows and theme parks.

“He was Baby Shark for one of his three Halloween costumes this year,” Olena Ripnick-O’Farrell, from the Upper West Side, said of her fifteen-month-old son, Felix, who was looking around ...

The original “Baby Shark” song is an old children’s tune, but in 2016, Korean children’s entertainment company Pinkfong revamped the song to be the upbeat, cheery melody that we know today.