Baby Shark, the infuriatingly catchy children's rhyme recorded by South Korean company Pinkfong, has become the most-watched video ever on YouTube. The song has now been played 7.04 billion times ...

It's not on the Radio 1 or 1Xtra playlists, but if you asked someone under 10 they'd probably say Baby Shark should be. And this week, the children's song joins the likes of Ariana Grande ...