Folie à Deux"? Joaquin Phoenix, Lady Gaga and director Todd Phillips break down the wild ending and Gaga's triumphant song.
During "Joker: Folie à Deux," Harley Quinn discusses building a mountain with Joker and sings "Gonna Build a Mountain" about the relationship. The song features the lyrics: "Going to build a ...
Joker: Folie á Deux introduces a whole new version of Harley Quinn played by Lady Gaga – who has been one of the biggest draws of this Joker movie sequel. Fans of DC's Batman and even pop-culture ...