Originally Posted by StrictlyEastend: “They looked like backing dancers. ”
As JR and Oksana are dancing to a song from Jersey Boys, I'm guessing they're supposed to be the Four Seasons . I suspect that they'll just spend the whole time stood on that plinth being the FS (and possibly actually singing), rather than joining in the dance. I hope so, because the extra dancers tend to clutter up the dancefloor and make it hard to concentrate on the main couple.