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Will.i.am is reportedly furious with Cher Lloyd after she complained that Cheryl Cole hadn't called her since The X Factor finished.

The Black Eyed Peas singer, who has recorded a duet with Lloyd, apparently read her the riot act for saying that her former mentor is "more interested in becoming famous in the States".

He is insisting that she apologises to the 'Promise This' star if they are to continue working on material together, The Sun reports.

"Will called Cher to tell her that she has got too big for her boots," a source told the paper.

"He has put a lot of money and effort into recording new tracks for her. He can't work with an immature baby and won't support her if she throws it back in people's faces."

X Factor host Dermot O'Leary recently described Lloyd as a force of nature.

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