When Lady Gaga was first confirmed to play Harley Quinn in Joker 2, it was natural to have a lot of questions when its first teaser showed artwork of the Grammy winner and Joaquin Phoenix dancing to Frank Sinatra’s “Cheek to Cheek.

Lady Gaga has said she had a “really personal” relationship with her character Harley Quinn while making Joker: Folie A Deux. The 38-year-old pop star, whose real name is Stefani Germanotta, was speaking at the film’s UK premiere in London’s Leicester Square on Wednesday, where she said she was “really honoured” to be in the movie.