See new photos from "Mad Men" season 7

Here's one party we wish we'd scored an invitation to.

AMC has released a batch of new "Mad Men" promotional images ahead of the show's return, and they show Don Draper & Co -- Betty, Megan, Sally, Peggy and Joan among them -- all dressed up at a swanky outdoor soiree.

As to be expected with this show, the costumes are gorgeous (and check out Megan Draper's lacy bellbottoms-and-crop-top ensemble). Just imagine being a fly on the wall as Peggy chats with Don over cocktails, or while Joan and Roger converse by that outdoor tent, or with the quartet of "Mad Men" ladies -- Joan, Peggy, Betty and Megan -- lounging by some patio furniture.

The seven final episodes of "Mad Men" begin airing Sunday, April 5 on AMC. Check out the rest of the new photos below.