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Cheryl Cole's mother Joan is said to be worried about her daughter.
According to Heat, Cheryl has no plans to return to the British 'X Factor' regardless to what happens in the States causing tension with Joan.
A source said: 'After the US stuff, she seems to think she's too big for the UK 'X Factor''
They added: 'Joan says she's tearing her hair out. She's told pals she doesn't think it's a good career move.'