As former X factor contestants, JLS have been passing on their words of wisdom to this year's X Factor acts.
Former X Factor finalists JLS have advised this year's acts not to go out and get drunk!
JLS were runners up back on the show in 2008, where the contestants were treated rather differently.
The group were BANNED from leaving the house they shared, which was located outside of central London.
This year the acts have been placed in 5 star luxury in the centre of the city, and have been encouraged to go out and have fun.
But JLS' Ortise said: "Don't go out too much. I know it's tempting. We didn't get that opportunity to go out, but focus on the competition.
Speaking at the royal red carpet premiere of new James Bond flick Skyfall this week, Aston added: "Going out, shouting, even laughing, is detrimental to your voice".
He told ITN: "Going out and drinking in the week and not concentrating on the weekend at hand is, again, not something that we did or we condone in any way, especially on that show and the intensity of that show
"But each to their own, at the end of the day. If they feel it, they feel it. If they don't, they don't. So good luck to them."
Browse pictures of the X Factor finalists on the red carpet below...
[cat c="the x factor"]XFactor[/cat] continues this Saturday night with a spooky Halloween themed episode as the remaining ten contestants perform live once again.
The latest results show follows on Sunday, which will feature performances from Fun. and Robbie Williams, as well as one more act being given the boot.