Lady Gaga to star in Dionne Warwick's biopic!

Cannes: Singer-actress Lady Gaga is set to star in the upcoming biopic of legendary singer Dionne Warwick.

Warwick, 75, herself confirmed 30-year-old Gaga's involvement in the project at HFPA FilmAid party in Cannes, said The Hollywood Reporter.

There was a confusion about Gaga's inclusion as her music reps were the ones that knew about the deal, and not her film reps, Warwick said.

"It is just a question of the right hand not knowing what the left hand is doing," said Warwick. "I'm waiting now for an email from either her and or management letting me know that all the retractions that have been tracted will be retracted."

The biopic, titled 'Dionne', was announced during the ongoing Cannes International Film Festival.

Immediately after the announcement, Gaga's reps sent out a statement saying she was not involved with the project, saying, "She is not attached and will not appear in this project."

Gaga is supposed to play Cilla Black -- Warwick's "musical nemesis"-- in the project, which is set to begin production late this year.