Last night in NYC, Maria Baibakova hosted Artspace's 2nd Anniversary Dinner at the James Burden Mansion, Jeff Koons debuted his new exhibition to Larry Gagosian, Petra Nemcova, Prabal Gurung, and others at the Gagosian Gallery, Alexandra Lebenthal invited guests over for the Style of Sport launch party, Freida Pinto and Barneys NY celebrated Maiyet Varanasi's silk capsule collection, and so much more!

Last night in NYC, Jeff Koons and Cindy Sherman honor Yoko Ono at the Art Production Fund's "I Dream Of..." Gala, Mark Wahlberg and 50 Cent get together for the "Pain and Gain" screening at the Crosby Street Hotel, Jake Gyllenhaal, Jenna Lyons, and Mayor Bloomberg came out to support Edible Schoolyard at its inaugural Spring benefit dinner, and more!

Last night in NYC, the New Museum honored Christian Marclay at their annual Spring Gala, Kelly Rowland and Rita Ora performed at a private concert for ELLE's Women in Music event, The Hollywood Reporter threw a bash for the 35 Most Powerful People in Media including Anna Wintour and Barbara Walters, and more!

Last night in NYC, Shia LaBeouf joined cast members Robert Redford and Brit Marling at the premiere and after-party of "The Company You Keep" while wearing a mysterious boot on his left foot, Emmy Rossum, Mayor Michael Bloomberg, and Meg Ryan came out to support Tom Hanks' Broadway debut in "Lucky Guy," written by the late Nora Ephron, Christie's hosted a dinner at Waverly Inn to celebrate the opening for Sante D'Orazio's "Other Graces" exhibition, and more!

Last night in NYC, Vladimir Restoin Roitfeld hosted a private champagne reception for the two-artist exhibition Ashley Bickerton & Nicolas Pol, Zoe Kravitz shared an intimate dinner with mom Lisa Bonet, boyfriend Penn Badgley, Alexander Wang and other friends for the launch of her new jewelry collection with Swarovski Crystallized, Estelle, Alexa Chung, and Chelsea Leyland stepped out for "The Big British Invite” opening soiree, Isabel & Ruben Toledo were honored at DIFFA's Dining by Design Gala, and more!

Last night in NYC, Tobey Maguire, Michael Douglas, and Jenna Lyons came out to honor Jennifer Meyer at a private dinner hosted by Diane von Furstenberg, Mitch Winehouse presented the Amy Winehouse Foundation to New Yorkers at the Electric Room, and so much more!

[Sam Riley, Kirsten Dunst, Garrett Hedlund, Kristen Stewart]

Last night in NYC, Kristen Stewart and Kirsten Dunst stepped out for the NYC Premiere of "On the Road," newly pregnant Jenna Bush Hager hosted the UNICEF Next Generation's 3rd annual Masquerade Ball, shoppers checked out the Refinery29 Tinseltown Bazaar, and so much more!

[Calvin Klein, Stella McCartney] [Christian Slater, Bruce Weber]

Last night in Miami, Stella McCartney and Calvin Klein stepped out for dinner at Mr. Chow's to celebrate the launch of Bill Viola's new exhibition at MOCA, Interview Mag and Sotheby's threw an artful soiree at the James Royal Palm, Paul Kasmin debuted his light display at The Standard Miami, and so much more!

As Milan Fashion Week comes to a close and us fashionistas head to Paris, we take a look back at the best parties this season. From Sharon Stone's extravagant amfAR gala to Giovanna Battaglia's dance party with young fashion designers, check out the best of Milan's Fashion Week parties!

Over the weekend Russell Simmons raised over $2 million dollars at his Art For Life Gala, Soledad O'Brien brought New Orleans to the Hamptons, The Randolph Group got weird at their 8th annual Pants Party, Shoppers threw elbows, Kelly Ripa and Brad Goreski included, at Super Saturday 15, The Watermill Center Benefit brought together the art and fashion world, The Surf Lodge was fulled with music and much more! More»

The only thing more pleasant than sipping a cocktail is doing so during sunset, and for a cause as good as ACRIA, The AIDS Community Research Initiative of America. It was a fair evening for an event of this caliber, and with notable names from both the fashion and the art scene, each and every guest was impeccably dressed. More»