Baby Shark Challenge - where cute girl filmed herself doing the Baby Shark dance moves [0:15]

Baby Shark is a song that is thought to have been around for a long time before a version of it was produced by a South Korean company called Pinkfong!.

It was Pinkfong!'s version that launched the viral craze, which started in Southeast Asia.

Its catchy lyrics and fun dance moves made it popular with children and adults alike.

However, Pinkfong! believe that a lot of their success came from popular Korean bands like Red Velvet, Girls' Generation, and Black Pink.

The Baby Shark Challenge - where people filmed themselves doing the Baby Shark dance moves - went viral, with #babysharkchallenge trending on Twitter.

Since then the song has taken off around the world - racking up over a billion views on YouTube.