In “Happy Mistake,” which is the only song not also in the film, Gaga processes her past through the lens of her character, Lee. Over a haunting guitar arrangement, she sings about wrestling with sadness in the public eye and how desperately she wants to put herself back together and put on a show for fans.

"Sometimes we can go through dark times and feel like happiness is an accident when it happens," she told Kimmel.

To really get to grips with the nuances of the song's lyrics, one fan put 'Happy Mistake' through an AI tool called ChatGPT. The AI summarised the song as an exploration of "the tension between presenting a composed, public persona and the internal chaos of self-reflection".

Lady Gaga appeared on Jimmy Kimmel Live ahead of the premiere of her new film, Joker: Folie à Deux, to showcase a song from the movie, "Happy Mistake." Dressed in a Harley Quinn-inspired harlequin ensemble that she designed herself,