In Joker: Folie à Deux, Lady Gaga stars as Harley Quinn opposite Joaquin Phoenix’s Arthur Fleck/Joker. The film—which is part ...

"When you are with your best friend, everything changes," the actress-singer exclusively tells PEOPLE at the 'Joker: Folie à ...

Harlequin” is a companion album for the film, in which Gaga stars as Lee, also better known as the unhinged villain Harley ...

On Sept. 26, Lady Gaga arrived to the London premiere of 'Joker: Folie á Deux' in a red-hot gown and wearing a rare Tiffany ...

Folie à Deux companion album Harlequin dropped on Friday (September 27), and it shot right to No. 1 on iTunes, becoming an ...

Lady Gaga is known for being an over-the-top pop star, but she may be keeping things simpler at her upcoming wedding to ...

Lady Gaga brings the drama to the Los Angeles premiere of 'Joker: Folie à Deux.' The singer donned an all-black Celine dress ...

Lady Gaga revealed on 'The Graham Norton Show' that initially thought her fiancé Michael Polansky 'was joking' when he popped ...

Lady Gaga kissed fiance Michael Polansky while promoting her new movie, Joker: Folie a Deux, in London's Leicester Square ...

Director Todd Phillips told reporters on the red carpet about the key role music plays in the sequel, while 'Industry' star ...

Lady Gaga stepped out with fiance Michael Polansky at the London premiere of "Joker: Folie à Deux" in a dramatic red gown -- ...

Gaga paired the dress with more Tiffany & Co. jewelry. This time she went with the brand’s Schlumberger Vigne necklace, which ...