"I found an acting coach and took a couple of lessons, and then I asked Kar Wai what I should start working on - you know, because I knew nothing about this character. And he said 'No, don't take acting lessons. I want you to be natural.' So I said, Are you sure? Are you crazy? You've never seen me act," Contactmusic quoted her as saying.
The Grammy award winner was also seen doing a cameo in 2002 in a film 'Two Weeks Notice" where she was seen at the piano, singing for a charity benefit.