Michelle Trachtenberg, who plays devilish Georgina Sparks on Gossip Girl, was among the partygoers sifting through racks of dresses designed by Thakoon, Rodarte, Jonathan Saunders, Temperley, and many others at a party celebrating the relaunch of 34 dresses from Target's GO International designer collaboration line. The party, at Opening Ceremony, also drew Chloe Sevigny, Lake Bell, Liv Tyler, Olivia Munn, Aziz Ansari, and Nina Garcia, and many others. Santigold and Caitlin Moe performed—in Rodarte for Target frocks, of course.