The exciting news was confirmed this morning (31 October) after Simon Cowell told the contestants during rehearsals that they needed a "wake up call".
Tomorrow night, which is a Halloween-themed Fright Night, will see the singer with the least number of public votes instantly sent home from the competition.
There won't even be a sing-off, so no doubt the hopefuls are quaking in their boots!
Simon told the gang: "There's going to be another double elimination again this weekend, and the difference is this week is there is going to be a twist.
"And the twist is, on the Saturday, the person with the lowest vote is going to leave the show. No sing-off, just whoever is in the bottom is out. And there's a sing-off on Sunday. So there are no second chances.
"This is how important the conversation is now and how important the performance is on Saturday and Sunday. We decided to do this because I think you all need a bit of a wake up call."
Talk about a Fright Night!
Last weekend, Louis Walsh's group Only The Young were saved by the judges after finding themselves in the sing-off with Jake Quickenden. Will they make it through another week?
All the acts have been busy in rehearsals and, yesterday, we were given a sneak peek of Fleur East being carried in the air by a group of dancers.
Acrobatics? Now here's one girl who is clearly determined to stay in the competition!