Forget twerking, forget the Harlem Shake and forget Gangnam Style.
There's a new music craze in town that's going viral and it all boils down to one simple question - What does the fox say?
Two Norwegian brothers who call themselves Ylvis are on their way to making that question a global pop culture phenomenon through their new song, The Fox and its even wackier music video.
The infectious EDM track features Bard and Vegard Ylvisaker, aged 31 and 34 respectively, describing the sounds that different animals make via nonsensical lyrics (dog goes woof, cat goes meow).
It then builds up into a frenzied chorus to answer the titular question on what sound the fox makes.
Posted last week on YouTube, The Fox, cowritten by Ylvis and their colleague Christian Lochstoer, is now a viral hit.
USA Today wrote of the song: "It can be only a matter of time before The Fox spawns a legion of Ylvis impersonators."
It had just over 200,000 views last Thursday.