Producers of The X Factor USA cannot decide on whether to offer Cheryl Cole a role on the judging panel, it has been reported.

The Girls Aloud star is still in the dark about her inclusion in the show and the delay has been caused by disagreements among Fox executives - two love her, while the other two aren't convinced that she is right for the job, The Sun reports.

Cole, who is apparently stressing out about her X Factor USA deal, has had more screen tests than any of the other contenders and has even had to watch footage of her performances from Popstars: The Rivals and give comments on them.

"Two big chiefs are extremely keen to sign her," a source told the paper. "They loved her feistiness and, obviously, her look on the UK version.

"And they love the fact she has such great chemistry with Simon Cowell. The other two bosses are dead against Cheryl as they want to sign a big US star."

Antonio 'L.A.' Reid has been confirmed as a judge on the show, while Cowell has spoken to Nicki Minaj about a possible role. Nicole Scherzinger is also in line to become the host.