Joaquin Phoenix recalls Lady Gaga's reaction when she heard him sing in 'Joker: Folie a Deux'

Actor Joaquin Phoenix, who is known for playing the titular character in the 2019 American psychological thriller film Joker, directed and co-produced by Todd Phillips, has returned as Arthur Fleck or Joker in Joker: Folie a Deux. It is a sequel to 2019's Joker'. Phoenix recently recalled what it was like to sing in front of Lady Gaga, who plays Harley Quinn in the movie, according to The Hollywood Reporter.

"I do seem to remember her spitting up coffee the first time I sang, so that felt good, that was exciting, and made me feel confident," he recalled.

He collaborated with the renowned Shallow singer to establish a musical rhythm that would underscore the development of their characters in the eagerly awaited film.

"Gaga was always very encouraging of just, 'Go with what you feel, it's fine'," Phoenix said. "For somebody who's not a performer in that way, it can be... uncomfortable to do that, but also very exciting."

He also shared the importance of music for his character.

"It was important to protect that with poor phrasing and occasional bum notes," Phoenix added. "Arthur grew up hearing his mother play these songs on the radio. He's not a singer, and he shouldn't sound like a professional singer. He should sound like somebody that's taking a shower and just bursts out into song."

The first Joker was a huge success, both critically and commercially. It was nominated for 11 Oscars, with Joaquin Phoenix winning Best Actor and Hildur Gudnadottir winning for Original Score. It became the highest-grossing R-rated movie ever. Phoenix reprises his role as Joker in the sequel, and Lady Gaga joins as Harley Quinn. The movie will mostly take place in Arkham Asylum.

• Katy Perry unveils release date for new single 'Lifetimes'