Lady Gaga has officially signed on to star opposite Joaquin Phoenix in Joker: Folie à Deux, the sequel to Todd Phillip's Oscar-winning smasher The Joker.
The Joker was a global sensation and have become the best earning R-rated film of all time, grossing over $1.07 billion worldwide.
It received 11 Oscar nominations and won two trophies: for Phoenix further as composer Hildur Gudnadottir, who won for best score.
Phoenix won his competition actor Oscar for taking part in Arthur Fleck, the emotionally-disturbed comic and professional clown who eventually transforms into the titular DC villain.
Many believe she’ll portray Harley Quinn, Fleck's psychiatrist at the Arkham Asylum asylum who falls for him and becomes partner in crime.
it has been rumored that the sequel are going to be a musical, and, given Gaga's casting, that seems likely to be true.