The X Factor bosses have been forced deny fix claims before this year's series has already begun.
Show chiefs have hit back at reports suggesting that some acts have been getting preferential treatment behind the scenes.
A story in the Daily Mirror had alleged that singing duo The Brooks were being unfairly favoured.
The duo, who previously made it as far as judges' houses sin 2014, are said to be managed to Simon Cowell's pal Sinitta.
The insider told the newspaper: “This absolutely stinks. Some acts have said ‘why bother auditioning when it’s clearly a fix?'”
The source also accused the duo of having "major attitude problems" as a result of their close connections.
"How a band clearly linked to Sinitta can behave so arrogantly, knowing that their fate is already guaranteed, is a massive kick in the face to all the other acts," the insider added.
However a spokesperson for The X Factor hit at the reports, saying: “The Brooks have received no special treatment and have not been guaranteed a place in the competition."
They went on: "Neither have there been any problems raised about their attitude.
“All acts are auditioned on the merit of their performances and nothing else.”
The X Factor will air on ITV later this year.