X Factor judge Louis Walsh has imposed a tough curfew on the acts in his category, as he begins filming judges' houses.
In a rare move away from Ireland, Louis has taken his acts out to Las Vegas with Sharon Osbourne to chose who will make the live shows.
But despite it for many being the trip of a life time, Louis has made sure that the singers don't get up to any mischief.
He warned: “Don’t let us catch you doing a Prince Harry.”
He added: “What happens in Vegas does NOT stay in Vegas when you’re on the X Factor — so don’t get caught out.”
Speaking to The Sun today, an insider explained: “The acts were excited — some of them haven’t been to the States before and they wanted to go into the bright lights of the big city.
“Louis has already said that his acts are ‘not here to party’.
“They were told they had to be back at the hotel by 10pm.
“After the photos of Prince Harry naked in his Vegas hotel room recently, bosses did not want the same happening with their acts.”
The insider added: “The acts must remember this is a family show and they can’t be seen in compromising situations.
“[They] were disappointed, but on the last night there may be more of a chance for some supervised fun — once the hard work is out the way.”
New judge [tag]Nicole Scherzinger[/tag] has already jet out to Dubai with US rapper Ne-Yo to whittle down her acts, the first of the panel to complete their judges' houses section.
[tag]Gary Barlow[/tag] is set to stay in London and will be joined with Robbie Williams to decide which acts in his category make the live shows while [tag]Tulisa Contostavlos[/tag] will visit St Lucia with UK star Tinie Tempah.
The X Factor continues next Saturday night on ITV1. The judges' houses section will air later this month.