If you're a Justin Bieber fan and love watching The X Factor, then you're in for a treat this Sunday because the Canadian star's performing on the show!
New boyband The Wanted will also be on the results programme, along with Pussycat Doll Nicole Scherzinger, who was a guest judge in this series.
It's not yet known what Bieber will sing. The Wanted are set to perform their new single Lose My Mind.
X Factor host Dermot O'Leary announced the news on Sunday's results show.
Nicole Scherzinger is set to perform her new solo single Poison.
Nicole Scherzinger, the girlfriend of F1 driver Lewis Hamilton, is expected to perform her new solo single Poison.
She was the guest judge at boot camp and suggested the idea of changing the over 25s category to the over 28s.