This article contains Joker: Folie Deux spoilers. If Arthur Fleck had a favorite song, it was probably "That's Life," the Dean Kay and Kelly Gordon big band standard first recorded in 1963 and popularized by Frank Sinatra in '66. A bit of a mean-spirited lament, the song features acerbic observations like "you're riding high […] The post Joker 2 Ending Explained: Let's Unpack That Shocker appeared first on Den of Geek.