Lady Gaga and Joaquin Phoenix wore black and exchanged laughs at the Los Angeles premiere of "Joker: Folie à Deux." (Sept. 30 ...

Get the latest news about Joaquin Phoenix. Find exclusive interviews, video clips, photos and more on Entertainment Tonight.

Lady Gaga is the latest star to portray Harley Quinn, the DC villain and Joker's right-hand who has appeared in both live ...

Get all the latest news, photos and more about the Bad Romance singer, who received an Oscar nomination for Best Actress for ...