Lady Gaga is in early negotiations to join Joker: Folie à Deux as Harley Quinn. Fans speculated that Harley Quinn would appear in the movie after director Todd Phillips posted the cover of the screenplay on his Instagram on June 7.
It is also revealed that Joker 2 will be a musical. The title of the film Folie à Deux refers to a shared delusional disorder.
All other details about the film, however, still remain under wraps and it is unclear whether Gaga will also contribute any music
to the project.