ITV's TV fundraiser Text Santa will feature a special Christmas edition of Celebrity Juice, which will air on December 21.
Fearne Cotton, Holly Willoughby and Lemon will all take part in the Christmas episode, which will feature plenty of festive jumpers, decorations and santas hats.
Davina McCall, Coronation Street star Simon Gregson and Stacey Solomon are among the celebs taking part.
JLS's Aston Merrygold and Strictly Come Dancing star Louis Smith will also get the Keith Lemon treatment.
Merrygold looks like he'll be forced to endure an unfortunate Christmas dinner with a twist courtesy of the show's host.
Celebrity Juice has enjoyed a hugely successful year on ITV2, picking up record-breaking ratings for the broadcaster.
The show also collected a BAFTA YouTube Audience Award earlier this year.
Speaking to Digital Spy about the show's success, Cotton said: "It's a monster! It started off being such a small show and now it's just huge. None of us can believe it.
"We were just having fun laughing every week! Now it's this mad, national obsession. We're so proud."