Please suggest me the best song for group dance on Christmas party?

Group as in you all dance the same way together? I guess I'd act out Rudolph the Red Nosed Reindeer. After a bit of spiked eggnog.
There's plenty of danceable Christmas music out there, sort of light rock, such as Rockin Around the Christmas Tree. You can slow dance to plenty too, like I'm Dreaming of a White Christmas or I'll be Home for Christmas.
But then I'd end the evening with some REAL dance music. Christmas songs just aren't designed for dancing.