The Hiro Ballroom was the place to be in NYC last night! DeLeon Tequila played host to Guns N' Roses, who put on a show for a star-studded crowd. Pregnant Sienna Miller holed up at a banquette with her fiancé Tom Sturridge, while nearby, Matt and Luciana Damon hung out with their pals designer Naeem Khan and Padma Lakshmi. Matt even said a quick hello to Justin Timberlake. New couple Olivia Wilde and Jason Sudeikis made the rounds, as did Jimmy Fallon and Boardwalk Empire's Jack Huston with his Victoria's Secret Angel girlfriend Shannan Click. It was Sienna's latest Fashion Week outing. She joined W magazine editor Stefani Tonchi on Tuesday night for the opening of "The Ever Changing Face of Beauty" exhibit at the Park Avenue Armory.