The X Factor 2014 bootcamp starts this weekend and we turned to Dermot O'Leary to explain just how it works.
Last Sunday we saw the final few hopefuls face the judges as the auditions came to a close.
This Friday, Saturday AND Sunday night they'll be fighting for a spot in the judges' houses at bootcamp, but it'll be a tough challenge.
Once again this year saw the judges get their categories before bootcamp begins: The six seat challenge.
They'll then perform, one at a time, at Wembley Arena in front of the judges and live audience.
After the performance, their mentor will make an instant decision whether or not to take them through to the judges' houses stage.
If they get a yes, they join one of six chairs at the side of the stage, but even then they're not safe.
Once all six spots are filled, if a judge wants to take any further acts through to judges' houses, they must first decide who to ditch from the six already selected to make room.
Watch Dermot give us the inside track above!