New details have come to light about the Joker sequel, which is called Joker: Folie à deux. According to The Hollywood Reporter, the film will be a musical starring Lady Gaga as Harley Quinn alongside Joaquin Phoenix reprising his role as Joker.

2019’s Joker made $1.074 billion at the global box office and is the 33rd highest-grossing movie in the history of cinema, even outgrossing 2019’s other massive movie, Star Wars: The Rise of Skywalker.

According to THR, Gaga is in “early talks” to appear in Joker 2, but no deal has been made. However, Warner Bros. and Gaga’s team are reportedly “deep into” negotiations. Should the deal materialize, Gaga would play a new version of Quinn separate from Margot Robbie’s portrayal of the character.

Joker 2 will be once again written and directed by Todd Phillips, who also directed 2018’s A Star is Born starring Gaga and Bradley Cooper (who also produced Joker). The report had no information about the new musical angle for Joker 2.

Phoenix won the Best Actor Academy Award for playing Arthur Fleck/Joker in Joker, while Hildur Guðnadóttir won the Best Music Oscar for the film as well. The movie also earned nominations for Best Picture and Best Director, among others.

As for the Joker character, he appeared at the end of 2022’s The Batman, played by Barry Keoghan. It’s expected that Keoghan’s Joker will have a bigger role in The Batman 2, and that this version of the DC villain is separate from the one Phoenix plays.