Lady Gaga performed a rendition of “Happy Mistake” inspired by her character of Harley Quinn while on Jimmy Kimmel.

Gaga portrayed the character Harley Quinn in “Joker: Folie à Deux”. She appeared on Jimmy Kimmel Live! Tuesday night (October 1) where she promoted her new film Joker: Folie à Deux as well as the film’s companion album “Harlequin”.

Joker: Folie à Deux has been referred to as a jukebox musical, with covers of several jazz standards including ‘Oh, When The Saints, ‘Get Happy’ and ‘That’s Life’, along with a few original tracks which are featured on the album.

The pop icon discussed ‘Harlequin‘, stating that the album is not the film’s soundtrack, but rather, “a concept record and it’s a companion piece to the film. So, whether you listen to it before you watch the movie or after, it’s like an extension of the world.”

Lady Gaga performs rendition of “Happy Mistake” on Jimmy Kimmel, Watch Out Here:

Gaga’s stripped-back performance showed her vocal skills as well as the raw emotion and fury that defined her role in Todd Phillips’ 2019 flick Joker Sequel. Following her performance, Gaga told Kimmel that the song was inspired by the movie, character Harley, and a reflection on her life as a performer.

“It’s meant to be a really personal song about how sometimes we can go through dark times and feel like happiness is an accident when it happens.”