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 ... Listen to Newsbeat live at 12:45 and 17:45 every weekday on BBC Radio ...

This dynamic duo was bound to happen. Parents, brace yourselves. Baby Shark and Sesame Street have joined forces to bring their fans a holiday masterpiece and a special merchandise collection.