PewDiePie on his new best selling book

This October, PewDiePie published a book titled "This Book Loves You" which debuted at #1 on the New York Times Young Adult Best Seller list. Yahoo Global News Anchor Katie Couric sits down with YouTube superstar turned author, PewDiePie, to discuss his book and his new series on YouTube Red titled “Scare PewDiePie.”