Saturdays star Frankie will be joined on the dance floor by former Strictly celebs Gethin Jones, Denise Lewis, Ainsley Harriott and Pamela Stephenson.
Melvin Odoom, who was first to be eliminated in this year's series, completes the lineup.
The special will air on Christmas Day and each of the stars will each be strutting their stuff in a fab festive routine.
A statement on the official Strictly website reads: "All six celebrities will be dancing to an extra-festive Christmas-themed routine.
"We'll be revealing who's dancing to what - and crucially, with which professional partner - in due course.
"In the meantime, why not get cracking on your Christmas prep nice and early? You've got a very important appointment in front of BBC One on the evening of December 25th..."
Frankie was a finalist in the 2014 series of Strictly Come Dancing, but she was forced to pull out of the series' official tour due to severe morning sickness. As a result, following the birth of her son Carter, Frankie was given a place on the Strictly tour this year.
Taking to Twitter following Strictly's festive announcement, Frankie gushed: "Can't wait to get back into those sequins!"
We can't wait too!
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