The singer is said to have told friends that show bosses have asked her to tone down her Geordie accent, and that any change to her appearance must be pre-approved.
A source told the Sunday Mirror: 'Receiving a contract to work on The X Factor in the US should be one of the highlights of Cheryl's career. But she won't be able to change her appearance or hair without the say-so of a producer and they have told her she must do her best to lose her accent.
Cheryl likes to be in control of her own destiny and feels she will have hardly any say in her own life. She says she will be living like a Stepford Wife. She's unhappy about giving so much of herself over to them. It's a case of they say, 'Jump' and Cheryl must say, 'How high?' It's really worrying her.'