Lady Gaga showed interest in the role of Harley Quinn in the upcoming Joker sequel, which is set to be a musical.

Director Todd Phillips posted script’s cover to Instagram on June 7, revealing the “Folie à Deux” subtitle.

The phrase refers to a shared delusional disorder, and Joker’s only real companion — other than Batman, anyway — has been Harley, a character first created for “Batman: The Animated Series” in the early 1990s. The teaser, however, does not outright confirm Gaga is playing Harley.

Harley Quinn has proven to be a durable character for Warner Bros. Margot Robbie has played the role three times, in 2016’s “Suicide Squad,” 2020’s “Birds of Prey” and 2021’s “The Suicide Squad,” and Kaley Cuoco voices the character on the popular HBO Max animated series “Harley Quinn,” which is now in its third season.

Phillips’ original “Joker” became a box office phenom in 2019, grossing just over $1 billion worldwide to become the highest-grossing R-rated movie in history (unadjusted for inflation).

The movie won the Golden Lion at the Venice Film Fest and went on to earn 11 Oscar nominations, including best picture and director. Phoenix won the Oscar, as did Hildur Guðnadóttir for original score.

Warner Bros. will release Joker: Folie à Deux in theaters October 4, 2024.

Watch the musical teaser in Gaga’s social media post below.