Nicholas McDonald duetted with former Westlife singer Shane Filan as they sang the Irish boy band's hit Flying Without Wings on the X-Factor stage.
The 17-year-old is through to the last leg of tonight's grand final.
After Sam Bailey became the 10th winner of the X Factor, we look at how previous winners of the competition have fared in the industry.
So how did Leicester's Sam Bailey win the X Factor - here we've put together each one of her performances from the auditions to the final.
Prison officer Sam Bailey has triumphed over teenager Nicholas McDonald to be named the 2013 X Factor winner.