Welcome to New York kitty. Louis Vuitton launched its cat-themed collaboration and pop-up store with famed fashion editor Grace Coddington Thursday night at a fête packed with feline-loving stars.

Fans and muses of the brand, including Julianne Moore, Michelle Williams and Sienna Miller, walked the red — er, orange carpet decked out in what else? Lots of Louis.

Items in the capsule collection, dubbed Catogram, feature Coddington’s whimsical illustrations of her Persian cats, Pumpkin and Blanket. Depictions of Vuitton creative director Nicolas Ghesquière’s dog, Léon, appear, as well, along with a few mice here and there. The critters appear on clothing, shoes and leather goods, including silk pajama sets and LV’s iconic Speedy and Petite Malle handbags.

The pop-up store, at 3 Ninth Ave., runs until Nov. 12.