How well do you know Frozen (2) How well do you really know Frozen? A little, a lot, or nothing at all. pumkinpie published on May 10, 2015 Stacked 1/5 What book is Frozen based off of? Pippi Longstocking The Snow Queen The Art of Frozen Frozen isn't based off of any book 2/5 Who was the author of the book Frozen was based off of? Type answer. Hint: 23 characters 3/5 Who sings the song Let It Go in Frozen? Elsa Idina Menzel Ana Taylor Swift 4/5 How many songs are in Frozen? 21 Too many to count 100 3 5/5 How much hair does Elsa have? Type answer. Hint: 7 characters