It's still a shock to the shit ones when they'r booed + the judges tell them their crap! They go through a few auditions with production staff etc. before they do the audition you see on tele. Evidently, they're told, "You're really good - you're through to the next round," by the production staff off air, then they're told their shit on TV.. bit cruel, like!! I know a few folk who've been to the auditions.. Read the bbc news article here BBC NEWS | Entertainment | What happens at an X Factor audition?