Lisa Vanderpump’s Dog — Giggy Guns for Mirror Ball … Will Dance w/ Lisa!

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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. 

Pressure”s on.