See what the "Today" show crew dressed up as this year, as well as Janelle Monáe disguised as E.T., Halle Bailey channeling ...

NPR's Ayesha Rascoe speaks with Columbia University professor Jeremy Dauber about his new book, "American Scary: A History of Horror from Salem to Stephen King and Beyond." ...

ALYSON HANNIGAN: (As Willow Rosenberg ... of the slasher kind of reigning supreme in some way - right? - that '80s period, very big. And I think this gets to, you know, an interesting thing ...