There could be a canine calamity tonight on "Dancing with the Stars" ... because we've learned Lisa Vanderpump's pooch Giggy will dance his paws off.
Giggy -- a permanent fixture on "Real Housewives of Beverly Hills" with more than 65,000 Twitter followers -- has been added to Lisa's inaugural dance number ... and if all goes according to plan (i.e. no poo mishaps) the pooch will hit the floor LIVE.
In fact, we're told Giggy -- who's slated to make his entrance at the end of the routine -- has been rehearsing non-stop with Lisa and her pro-partner Gleb Savchenko.
Gleb might make the Pomeranian a permanent fixture ... it all depends on his performance ... and how well he wears sequins.