"I am all about the ckIN2U fragrance," said Mena Suvari at the launch of the new Calvin Klein scent in an abandoned midtown button factory on Thursday night. "But I am not into the White Castle burgers they're passing around." While Suvari skipped the sliders, there must have been some takers among the guests, which included Sienna Miller, her new beau Jamie Burke, and Julia Restoin-Roitfeld, since they vanished pretty fast. Less popular was the "technosexual" label, which refers to the fashion-loving technology fetishist at which ckIN2U is aimed. Despite the high number of BlackBerry junkies in the crowd, no one admitted to fitting into Calvin Klein's copyrighted category. "This is way too cool for me," said Fabiola Beracasa as she made an early exit. "I am just not a hipster."

About ten blocks south at the Ports 1961 showroom, Vanity Fair and the Accompanied Literary Society co-hosted a Rat Pack-themed affair for the new book Photo by Sammy Davis, Jr. "This is such a lovely party," said the entertainer's widow, Altovise Davis, as she surveyed a crowd that included the book's author, Burt Boyar, as well as the magazine's David Friend and Ports designer Tia Cibani. Along the walls hung a sampling of the intimate, never-before-seen images of Marilyn Monroe chatting backstage with Lauren Bacall and Frank Sinatra goofing with Dean Martin. In keeping with the spirit of the era, the Citizens Band's Adam Dugas, looking dapper in a black tux and top hat, performed a four-song set with a full band. His closing number? The Candy Man, of course.

Back uptown at Bergdorf Goodman, Diane von Furstenberg introduced friends to Vital Voices, a nonprofit launched by Hillary Clinton during her time as first lady that aids female entrepreneurs in socially conscious businesses. Well-appointed guests like Cristina Greeven Cuomo and Karenna Gore Schiff listened to the touching words of Somaly Mam, honored by the designer for her commitment to helping Cambodian women coerced into prostitution. "I've yet to meet a woman who wasn't strong," said von Furstenberg, "but Somaly is one of the strongest." Doing her part, Rachel Roy headed down to the fifth floor to stock up on DVF dresses, 15 percent of the proceeds of which benefited the cause.

— Jessica Ramakrishnan, Sarah Cristobal, and Madhu P