Joker director Todd Phillips confirmed that a sequel to the 2019 film is underway earlier this month, it’s been revealed that Lady Gaga is in talks to star opposite Joaquin Phoenix in the role of Harley Quinn.Last week, Phillips announced Joker: Folie à Deux by sharing the cover of its script, written by him and his Joker co-writer Scott Silver. He also included a photo of Phoenix reading the script, suggesting the actor’s return to the titular role after delivering an Oscar-winning performance in the original.Now, The Hollywood Reporter has revealed that, according to sources, the upcoming sequel is a musical.