X Factor Semi-Final: Result Show Guest Performers

The first news is in for this weekend's X Factor semi-final. The guest performers on Sunday's result show are revealed.

Sia is set to take to The X Factor stage on Sunday's Results Show, with the singer/songwriter performing her latest single Alive from new album This Is Acting, due for release on 26th January, 2016.

And, if that wasn’t enough, it’s time to polish those dancing shoes as Jason Derulo will also be singing his smash hit track Want To Want Me from his latest LP, Everything Is 4.

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