Last night saw the remaining eight X Factor finalists perform live for the fifth time, singing songs charts that have hit Number One.
This evening, Dermot O'Leary revealed that Rylan Clark and Kye Sones had received the fewest public votes and would have to sing again.
It's the second time for both in the bottom two, and for one it will be the end of their journey tonight.
In the sing off the pair will go head to head and the judges - Gary Barlow, Tulisa Contostavlos, Nicole Scherzinger and Louis Walsh - will decide which of the pair stays and goes.
Although if the first three weeks are anything to go by, they'll just send it to deadlock!
Find out soon!
The X Factor 2012 UK continues next Saturday and Sunday on ITV1.