"William Bowery" was credited on several songs on folklore and evermore. Swifties, never deterred by a puzzle, determined that this was actually Swift's boyfriend at the time, Joe Alwyn, because of his great-grandfather's name (William) and the place where the two first dated in 2016 (the Bowery Hotel). Wow.

"Christmas and Taylor Swift? These are the two great loves of my life," says the writer of the new Lifetime movie "Christmas in the Spotlight."

While there's an extreme surge of happiness for many fans who scored tickets to the concert of a lifetime, there can be intense sadness when it's over. A neurologist explains why.