Britain's Got Talent 's four judges are reportedly set to take to the stage with former winners in the festive special coming up this month.
Amanda Holden, David Walliams, Alesha Dixon and Ashley Banjo, who is covering for Simon Cowell after his back injury, will be returning to watch the acts.
And The Sun reports each judge will be performing a routine based on their own skill.
Amanda will be performing a musical theatre number with 2014 series winners Collabro.
David will perform a comedy routine with 2018 winner and fellow comic Lose Voice Guy.
Alesha will be performing Have Yourself a Merry Little Christmas with 2017 winner and pianist Tokio Myers.
And Ashley will be rejoining Diversity on stage after they won the show in 2009, alongside 2008 street dancer George Sampson.
A source said: "The judges wanted to get up and do their bit in the Christmas special to put a smile on viewers' faces.
"They will all perform but not alone.
"It’s not until you see some of the acts getting up with them that you are reminded of the quality of some of the past winners."
The Mirror has contacted a representative for BGT for comment.
It is also reported that hosts Ant McPartlin and Dec Donnelly will be dressed up as Elf on the Shelf for the show, which airs on Christmas Day at 8pm on ITV.
And David Walliams has also been spotted in his costume dressed up as the Queen for a skit during the episode.
