Warner Bros. and DC Studios shared a short clip before releasing the full trailer.

The trailer for Joker 2, titled 'Folie à Deux', features Joaquin Phoenix and Lady Gaga creating chaos.

In the teaser, Joker laughs in a prison yard while it's raining.

Joker: Folie à Deux' is part of Warner Bros.' 2024 movie lineup and comes out on October 4.

 The teaser reveals how Joker and Harley Quinn (played by Lady Gaga) meet and plan to escape from a place.

Lady Gaga's version of Harley Quinn adds music to the movie.

 Music is a big part of the story, with classic songs playing in the trailer.

The movie will feature 15 cover songs and might include new songs too.

 Lady Gaga won an Oscar for a song she wrote for another movie.

Joaquin Phoenix, who won an Oscar for his role in the first Joker movie, is back for the sequel.