Britney Spears has claimed she turned down an offer to star in the 2002 movie musical Chicago.

In her new memoir, The Woman in Me, the pop superstar revealed that she was approached by movie executives about starring in the movie adaptation of the famed musical.

However, she turned the opportunity down because she struggled to separate herself from her character Lucy in her 2002 movie debut Crossroads.

“Chicago would have been fun,” Britney wrote, according to Daily Mail. “It’s all dance pieces – my favorite kind: prissy, girly follies, Pussycat Doll-like, serve-off your-corset moves.

“I wish I’d taken that offer. I would have gotten to play a villain who kills a man, and sings and dances while doing it, too.”

The 41-year-old confessed that she should have tried a different approach to acting instead of simply turning it down.

“I probably could have found ways, gotten training, to keep from becoming a Chicago character the way that I had with Lucy in Crossroads. I wish I’d tried something different,” she stated.

In the autobiography, which was released on Tuesday, the Toxic singer explained that she adopted the method acting approach for Crossroads and it transformed who she was both on and off-screen.

“When the camera came on, I was her, and then I couldn’t tell the difference between when the camera was on and when it wasn’t,” she recalled. “I know that seems stupid, but it’s the truth. I took it that seriously. I took it seriously to the point where (her then-boyfriend) Justin (Timberlake) said, ‘Why are you walking like that? Who are you?’

“All I can say is it’s a good thing Lucy was a sweet girl writing poems about how she was ‘not a girl, not yet a woman’, and not a serial killer.”

Britney also turned down the role of Allie in 2004’s The Notebook because of her experience making Crossroads.

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