No joke: Lady Gaga joins Joaquin Phoenix in ‘Joker 2’

J-J-J-Joker face, J-J-Joker face.

Lady Gaga has formally joined the solid of Warner Bros.’ “Joker” sequel reverse Joaquin Phoenix’s Arthur Fleck. After weeks of hypothesis concerning the Grammy and Oscar winner’s involvement within the challenge, the “Chromatica” artist confirmed the rumors Thursday by posting an animated clip of herself and Phoenix dancing in silhouette to the usual “Cheek to Cheek.”

The promotional video additionally reveals a title and launch date for the movie: “Joker: Folie à Deux,” out Oct. 4, 2024.

In accordance with Selection, Gaga is predicted to play unhinged Gotham Metropolis villain Harley Quinn within the follow-up to 2019’s “Joker,” a darkish origin story about Batman’s cackling nemesis that was nominated for 11 Oscars.

On the 92nd Academy Awards, Phoenix took dwelling the prize for lead actor, whereas “Joker” composer Hildur Guðnadóttir grew to become the primary girl in 20 years to win the Oscar for authentic rating. Todd Phillips, who acquired an Oscar nomination for guiding “Joker,” is returning to helm the sequel.

“In the second or third week of shooting [‘Joker’], I was like, ‘Todd, can you start working on a sequel? There’s way too much to explore,’” Phoenix instructed The Instances in 2019. “It was kind of in jest — but not really.”

“It would have to have some thematic resonance in a similar way that [‘Joker’] does,” Phillips added. “Because I think that’s ultimately why the movie connected, it’s what’s going on underneath. So many movies are about the spark, and this is about the powder. If you could capture that again in a real way, that would be interesting.”

In contrast to its predecessor, “Joker: Folie à Deux” might be a musical, which possible contributed to the choice to solid a world-renowned musician as the feminine lead. Gaga beforehand acted and sang within the 2018 remake of “A Star Is Born,” which landed her an Academy Award nomination for lead actress and an Oscar for her authentic tune “Shallow.”

The casting announcement for “Joker 2″ comes shortly after Warner Bros. abandoned plans to release another DC Comics adaptation, “Batgirl,” which had already wrapped production and was supposed to come out on HBO Max.

Amid reports that the studio giant will no longer offer the superhero film on its streaming platform or in theaters, “Batgirl” directors Adil El Arbi and Bilall Fallah issued a joint statement Wednesday expressing their disappointment.

“We are saddened and shocked by the news. We still can’t believe it,” they said.

“As directors, it is critical that our work be shown to audiences, and while the film was far from finished, we wish that fans all over the world would have had the opportunity to see and embrace the final film themselves. Maybe one day they will insha’Allah.”

Leslie Grace — who was set to star in “Batgirl” as the titular character — also responded to Warner Bros.’ controversial decision via Instagram.

“I feel blessed to have worked among absolute greats and forged relationships for a lifetime in the process!” the “In the Heights” actor wrote.

“To every Batgirl fan – THANK YOU for the love and belief, allowing me to take on the cape and become, as Babs said best, ‘my own damn hero!’ #Batgirl for life!”