Cher has said she is “the least diva-like person” and explained that type of behaviour “does not make sense” to her.
The American superstar, who headlined the Royal Variety Performance on Thursday evening, spoke about her upcoming biopic, which she said has been “very hard to cast”.
The 77-year-old told The Graham Norton Show: “It is the hardest thing.
“I have lived too long and done so much, it is very hard to cast, and we haven’t even finished the script.
She added: “I will do all the music myself because I don’t like imitation.”
Asked if she is a diva, she said: “Don’t be ridiculous, I am the least diva-like person.
“That (behaviour) does not make sense to me.”
The Believe singer also spoke about the time she had spent in England when she was in the pop duo Sonny & Cher with her then-husband, the late Sonny Bono.
She said: “We (Sonny & Cher) actually got famous here.
“America hated us so we sold everything and came here.
“When an old lady asked for my autograph, it was like heaven. People really liked us.
“We got famous and when we went home everyone thought we were English!”
The singer and actress performed her current single DJ Play A Christmas Song in the studio and hinted at some upcoming performances.
Speaking about whether there is a new tour in the works, she said: “It seems so.”
Hollywood actors Tom Hanks, Julia Roberts and Timothee Chalamet joined Cher on Norton’s red sofa this week.
Chalamet, 27, spoke about what it was like to film the Wonka movie and said: “We shot the film in London so, after spending five months here I feel like an honorary Brit – it was joyous.”
The Graham Norton Show airs on BBC One at 10.40pm and is also available on BBC iPlayer.