Los Angeles, Jul 16 (IANS): Music mogul Simon Cowell will be present for a court hearing in connection with singer Cheryl Cole's claim that "The X Factor" producers Blue Orbit, have not given her the promised fee.

Cheryl judged the US version of reality show in 2011, but she was fired because of her bad performance.

She was paid a fee of 1.2 million pounds, but the singer claimed that she was promised an amount of 1.5 million pounds to return for a second series, regardless of the outcome of the first.

Simon will be a key witness in the court hearing.

"She is pushing for full fees. 2 million pound, legal fees and a bonus, which could total 3.5 million pounds. Cheryl will learn what Simon earned and her co-stars too," dailymirror.co.uk quoted a source as saying.

During her tenure as a judge, she shared the panel with Simon, L.A Reid and Paula Abdul.

If Cheryl proves that she was treated differently than her co-judges in terms of pay, she can turn the verdict in her favour. The details of the monetary structures might be revealed in the hearing.

"Those papers could be the smoking gun if she can show others have been treated differently to her. (However), the confidentiality of the of discovery order means much of his testimony is unlikely to become public," the source said.