Fans in London will get the chance to audition for the hit talent show for three days in April and one of those days is April 29, when Prince William will marry Kate Middleton in Westminster Abbey.
According to UK newspaper The Sun, bosses including Simon Cowell are worried plans will be ruined as the X Factor helicopter won't be able to fly above the venue while their staff's walkie-talkies will also not work.
The plans may now have to change and Cowell, 51, is yet to confirm the line-up of the judges on the show.
A source told the newspaper: 'They've a massive headache.'