In case you haven't heard, Lady Gaga is Harley Quinn in Joker ... wore an black minidress with a dainty blue floral print. The dress had an elastic waist, and featured an exaggerated lace collar ...

Lady Gaga has been hinting at new music for a while, posting photos of herself in the recording studio to Instagram in between filming her role as Harley ... Gaga in a white dress, leaning over ...

Phoenix reprises his role in the sequel, which explores the twisted relationship between Joker and Harley as they meet ... the first official photos of Gaga and Phoenix in character on his ...