The new film Joker: Folie à Deux hits theaters this weekend and you can’t blame its leading lady, Lady Gaga, for sleeping on her promotional duties. Gaga plays Harley Quinn in the film, which was just released harlequintheir accompanying album. They’re mostly jazz theater kid standards, songs that Lady Gaga would probably like to record anyway. But the LP contains a few originals, and Gaga sang one of them as she continued Kimmel last night.

To KimmelLady Gaga sang the storming ballad “Happy Mistake” and she really kicked things off, slamming all over the place and giving her song the full stadium treatment. Her voice sounded great! The song is ok! This is believed to be Gaga’s latest Oscar piece, so it makes sense that she also sat in on an interview with regular Oscar host Jimmy Kimmel. She did this while wearing a clown dress that she says she designed herself.

In her interview, Lady Gaga talked about her engagement to a man from Minnesota. (This is probably dismissive, but it’s basically how she and Kimmel described him.) They talked about it too joker Film. Gaga’s description: “It’s not your typical musical. It’s kind of unhinged and chaotic.” Gaga also says that her character is “not a trained singer,” which I guess means we’re supposed to pay to see a movie where Lady Gaga, a good singer, is bad sings. The film still looks terrible, but Lady Gaga is a very charming famous person. Watch the appearance and interview below.

Lady Gaga also sang “Happy Mistake” at a secret fans-only show at Belasco in Los Angeles on Tuesday night. According to a fan site, the whole thing was recorded between midnight and 2 a.m. Setlist.fm says she sang all the “Harlequin” songs and a Bruno Marsless “Die With A Smile.” The performance was filmed for future release.