Style Set: This Week's Best Dressed

Bill Cunningham (on his 85th birthday!) at an event hosted by the New York Historical Society presenting the exhibition Bill Cunningham's Photographs of New York.

Chloe Perrin at the Annual Young Fellows Ball at The Frick Collection in New York.

Hannah Bronfman at the Annual Young Fellows Ball at The Frick Collection in New York.

Cynthia Vincent at an event for The Collective at Bloomingdale's in New York City.

Cynthia Rowley at an event for The Collective at Bloomingdale's in New York City.

Trina Turk and Nanette Lepore at an event for The Collective at Bloomingdale's in New York City.

Hannah Bronfman and Rebecca Minkoff at an event for The Collective at Bloomingdale's in New York City.

Mara Hoffman at an event for The Collective at Bloomingdale's in New York City.

Linda Yablonsky and Carolina Herrera at the White Glove Gone Wild Gala in New York.

Stefano Tonchi and Cindy Sherman at the White Glove Gone Wild Gala in New York.

Erin Fetherston at the White Glove Gone Wild Gala in New York.

Leandra Medine at the White Glove Gone Wild Gala in New York.

Karlie Kloss at the White Glove Gone Wild Gala in New York.

Michael Bastian and Eugenia Gonzalez at a birthday party for Euan Rellie in New York.

Nick Sullivan at the debut of the Ermenegildo Zegna couture collection in New York.

Sophia Webster at a New York Foundation For the Arts benefit.

Max Osterweis and Erin Beatty at the CFDA Fashion Awards nominee announcement party in New York.

Virginia Smith at the CFDA Fashion Awards nominee announcement party in New York.

Pamela Love at the CFDA Fashion Awards nominee announcement party in New York.

Harley Viera-Newton at the CFDA Fashion Awards nominee announcement party in New York.

Jennifer Fisher, Irene Neuwirth, Nadja Swarovski, and Marc Alary at the CFDA Fashion Awards nominee announcement party in New York.

Rebecca Minkoff at the CFDA Fashion Awards nominee announcement party in New York.

Steven Kolb and Nadja Swarovski at the CFDA Fashion Awards nominee announcement party in New York.

Diane von Furstenberg at the CFDA Fashion Awards nominee announcement party in New York.

Carolina Herrera at the CFDA Fashion Awards nominee announcement party in New York.

Anna Wintour and Marcus Wainwright at the 2014 CFDA Fashion Awards nominee announcement party in New York.

Indre Rockefeller at the 2014 CFDA Fashion Awards nominee announcement party in New York.

Michael Kors at the 2014 CFDA Fashion Awards nominee announcement party in New York.

Dao-Yi Chow and Maxwell Osborne at the 2014 CFDA Fashion Awards nominee announcement party in New York.

Maria Cornejo and Joseph Altuzarra at the 2014 CFDA Fashion Awards nominee announcement party in New York.

Tim Coppens at the 2014 CFDA Fashion Awards nominee announcement party in New York.

Rosie Assoulin at the 2014 CFDA Fashion Awards nominee announcement party in New York.

Chris Peters and Shane Gabier at the 2014 CFDA Fashion Awards nominee announcement party in New York.

Shayne Oliver at the 2014 CFDA Fashion Awards nominee announcement party in New York.

Carly Cushnie and Michelle Ochs at the 2014 CFDA Fashion Awards nominee announcement party in New York.

Adrienne Landau at the 2014 CFDA Fashion Awards nominee announcement party in New York.

Kerry Pieri and Kate Foley at the 2014 CFDA Fashion Awards nominee announcement party in New York.

Charlotte Ronson at the 2014 CFDA Fashion Awards nominee announcement party in New York.

Bethann Hardison at the 2014 CFDA Fashion Awards nominee announcement party in New York.

Leandra Medine at the 2014 CFDA Fashion Awards nominee announcement party in New York.

Ivanka Trump at a gathering celebrating the Puck Penthouses in New York.

Rachel Roy at the Love Heals 2014 Gala in New York.

Nate Berkus at An Evening in Kathmandu in New York.

Naomi Campbell at SiriusXM's "Town Hall" in New York.

Alessandra Ambrosio and Behati Prinsloo at the Victoria's Secret Swim Collection press day in West Hollywood.

Karl Lagerfeld at the launch of his new perfume in Paris.

Kate Young and Patricia Black at the 10th Anniversary of Albright Fashion Library at the Fashion Institute of Technology in New York.

Sophie Theallet and Mary Alice Stephenson at the 10th Anniversary of Albright Fashion Library at the Fashion Institute of Technology in New York.

Jeffrey Costello and Robert Tagliapietra at the 10th Anniversary of Albright Fashion Library at the Fashion Institute of Technology in New York.

Patti Wilson at the 10th Anniversary of Albright Fashion Library at the Fashion Institute of Technology in New York.

Marina Albright, Irene Albright, and Giovanna Battaglia at the 10th Anniversary of Albright Fashion Library at the Fashion Institute of Technology in New York.

June Ambrose at the 10th Anniversary of Albright Fashion Library at the Fashion Institute of Technology in New York.

Dita Von Teese and Liz Goldwyn at the Fine Arts Museums of San Francisco Mid-Winter Gala.

Lauren Remington Platt in Ferragamo at the Fine Arts Museums of San Francisco Mid-Winter Gala.

Leigh Lezark at the Fine Arts Museums of San Francisco Mid-Winter Gala.

Jessica Hart in Ferragamo at the Fine Arts Museums of San Francisco Mid-Winter Gala.

Lily Kwong in Ferragamo at the Fine Arts Museums of San Francisco Mid-Winter Gala.

Derek Blasberg at the Fine Arts Museums of San Francisco Mid-Winter Gala.