If you thought the 'Baby Shark' craze was over, think again.
The South Korean company behind the viral hit is seeking to capitalise on the song's success with a cartoon series and a musical.
'Baby Shark' has been around in various guises for more than a decade, but Pinkfong's version became the viral hit of 2018, with more than 2 billion views on YouTube. It even cracked the UK top 40.
"It is so catchy, it has such a hook, so addictive that it is literally crack for kids," Hollywood producer and media consultant Teddy Zee explained to ABC News.
"It can go on repeat, [and it's] so addictive that it even has parents and grandparents sharing in the experience."
Lee Seung-kyu, who helped found Pinkfong's owner StartStudy, told Bloomberg News they are planning on releasing the short videos on Netflix.
The company may also develop games designed to work with Amazon's Alexa and Google's Home voice assistants.
Mr Zee told ABC News the challenge will be in moving from short YouTube videos and into longer content.
"The skillset is different going from short content that lasts three to five minutes at tops into a scripted, longer-form, 22-minute format, which is the domain of traditional media companies in Hollywood," he said.
And the company might be switching from sharks to penguins.
"I really liked Madagascar," Mr Lee said.