What does the fox say?

Hi guys,

Here you´ve got a funny song . It´s about animals  and  sounds: dog goes " woof" , cat goes " meaow" , birds go " tweet" ... and fox?  What does the fox say?.

 This song has been called " the song of the summer " and compared to " Gangnam Style".

It´s really easy to understand . You must watch this video because this  song by Norwegian brothers Ylvis is amazing and funny.