The Olympia Panto of Polly and the Beanstalk starts it's run in two weeks time.
The show will run for nearly a month and will star Rory Cowen as the lead.
However, now there's been a musical addition to the show.
X Factor stars Sean and Conor Price will appear as special guest stars.
The news was confirmed on the Olympia's Twitter earlier.
Just announced by @OlympiaPanto, @TheXFactor's @sean_conorprice are special guests in POLLY AND THE BEANSTALK!— The Olympia Theatre (@olympiatheatre) November 28, 2017
Sean & Conor are delighted to join the all star cast including the hilarious @1rorycowan, @DustinOfficial, Fair City's #RyanAndrews & RTE's Scorchio star @MichaelaON pic.twitter.com/8a1Yxh0SHM