Norwegian brothers Bård Ylvisåker and Vegard Ylvisåker, known together as the comedy duo Ylvis, released the music video for their now mega hit The Fox (What Does The Fox Say?) in September 2013. Since then, utterly ridiculous, oddly catchy, and completely mesmerizing depiction of a furry forest animal that’s like an “angel in disguise” has racked up nearly 300 million views and spawned at least one children’s book that’s also put up some very impressive numbers. Simon and Schuster’s hardcover of What Does The Fox Say? went up for sale on Amazon December 10, 2013. It’s currently the #1 seller in the category of Children’s Books about Poetry, the #1 seller in the category of Children’s Books about Foxes & Wolves, and #10 in Books Overall. Yes, Ylvis’ print and paper iteration of their The Fox song is, at the moment of this writing, the tenth best-selling book on all of Amazon.