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, Julianne Moore and Alexander Skarsgard kept up the husband and wife charade with on-screen daughter Onata Aprile at the screening and after party of their new film "What Maisie Knew," Mena Suvari, Jessica Stam, and Kate Flannery hosted Operation Smile's 2013 New York Smile Event, Anna Wintour stepped out for a special screening of "Venus and Serena," and so much more!

Last night in NYC, Barneys NY celebrated 60 years of Chloe with Chloe Sevigny and Clare Waight Keller, Marc Jacobs, Alexander Wang, and Phillip Lim were among the designers nominated for the 2013 CFDA Fashion Awards, Robert Verdi hosted the 4th Annual Fashion 2.0 Awards with keynote speaker Simon Doonan, Abigail Breslin and Leigh Lazark helped celebrate Teen Vogue's 10th anniversary at Willow Road, and so much more!

[Roger Jenkins, Elle Macpherson] [Euan Rellie, Lucy Sykes] [Eric Zinterhofer, Aerin Lauder]

Last week we brought you ten NYC financiers who managed to land some of our favorite ladies, from Leandra Medine to Mary-Kate Olsen. As it turns out, the list goes on. So, we want to introduce you to another batch of fine financiers and the leading ladies who've managed to steal their hearts. Click through to see the powerful duos in part II. More»

Over the weekend in NYC, the Roitfeld clan came out to toast the launch of CR Fashion Book at the Frick Collection, Busta Rhymes had a surprise performance for Alexander Wang's after party, Purple Magazine brought their annual Fashion Week frenzy to the Boom Boom Room, Prabal Gurung hosted an all out karaoke party at the new pop-up, Chez Andre, Opening Ceremony celebrated their 10 year anniversary with a live performance by Lil Kim at Webster Hall, and so much more! More»

Last night in NYC, Georgia May Jagger celebrated Hudson's 10 year anniversary at the Electric Room with the Brandt brothers, Mayor Bloomberg and Ivanka Trump came out to support the Pin Down Bladder cancer campaign launch, Sergio Rossi hosted cocktails at Barneys for his fall collection, Scene Magazine celebrated their July issue, and so much more! Last night's parties were full of launch parties. More»

Last night in NYC, Christian Bale, Anne Hathaway, Morgan Freeman, and Marion Cotillard shined on the red carpet for the world premiere of The Dark Knight Rises, Jay-Z and Beyonce swung by Bagatelle for Nas' Life is Good album release party, SUPRA NYC celebrated their 1 year anniversary in Soho with DJ Premier, The Westway team won the bowling competition hosted by Brandsway Creative and @NYNightlife, and so much more! Last night's parties were all about striking big and staying out all knight. More»

Last night in NYC, Karl Lagerfeld and Anna Wintour attended the Gordon Parks Centennial Gala, Solange Knowles and Poppy Delevigne celebrated Acne Studios' NYC flagship store with a private dinner and performance by Lykke Li, Olivia Munn mingled with former SNL cast members at the Top of the Standard for Lola Versus' after party, Stefano Tonchi came out for Rashaad Newsome's debut in W Magazine, and more! Last night's parties were full of store openings for the summer!

[Photo: Caroline Winberg, Poppy Delevingne, Hanneli Mustaparta via BFA] More»

Wolfgang Puck hosts brunch for Les Moonves and Nobuyuki Matsuhisa; Harry Potter wins big at Spike TV's sixth annual SCREAM Awards; Nicole Richie and other honor Justin Timberlake is for being especially green; Scott Caan and Jason Mraz are recognized for their commitment to the Life Rolls On Foundation; Usher and Bono perform while Lady Gaga has a her "first Marilyn moment" as she serenades the former president at the 10th anniversary gala of Bill Clinton's Foundation; More»

Anna Faris, Chris Evans, Emmy Rossum, and Dave Annable step out for the premiere of the new film that ponders the true love and sluttishness in What's My Number?; Hugh Hefner, Jane Fonda, and Carrie Underwood honor Smokey Robinson for his many achievements in music at the 2011 Ella Awards—Hollywood was still feeling the pain from Sunday night's Emmy festivities, but not everyone was too hungover to step out for some fun, so get all the details on Monday's party warriors in this edition of Last Night's Parties. More»