[Katy Perry, Selena Gomez] [Allison Williams, Prabal Gurung] [Uma Thurman via, via BFA]

Last night in NYC, Selena Gomez, Katy Perry, and Allison Williams supported UNICEF at the annual Snowflake Ball, Monique Lhuillier celebrated her store opening, Stuart Weitzman was honored at the 2012 Footwear News Achievement Awards, Alicia Keys stepped out with Swizz Beatz for her album release party, and more!

The Guest List

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Carolyn Murphy• Katy Perry• Kenneth Cole• Justin Timberlake• Jay-Z• Hilary Rhoda• Selena Gomez• Kelly Rutherford• Alicia Keys• Beyonce• Fergie• Tribeca Grand Hotel• Annabel Tollman• Selita Ebanks• Uma Thurman• Harley Viera Newton• Alexandra Lebenthal• Jamie Tisch• Rebecca Minkoff• Lauren Dupont• Gillian Hearst• Miranda Kerr• Stuart Weitzman• Prabal Gurung• Ken Downing• Mia Moretti• Kate Mara• swizz beatz• Steve Wynn• Tabitha Simmons• Monique Lhuillier• Lily Kwong• Leandra Medine• Hannah Bronfman• Allison Williams• Uri Minkoff• Tali Lennox• Caroline Naggiar• Cara Crowley• Girl on Fire• Mikimoto Celebrates the 8th Annual Snowflake Ball• Deb Shriver• Hiro Mikimoto• Nicole Jeffries• Tommy Pom• Sarah McLellen• Jane Young• Helena Grazier• Derek Conrad• Tiffany & Co. Launches New Tumblr Site From Out Of The Blue• 2012 Footwear News Achievement Awards• Kate Spade New York & Vogue Celebrate the Holiday Season• Norah Barnes• Ritsuko Nakajima• Hiroko Sujiwara• Chelsea Baxter• Liz Colville• Colin Clark• Jen Liu• Annie Vollet• Grace Johnstone• Monique Lhuillier Store Opening• Alicia Keys' Album Release Party• Qui Tequila• Alicia Keys' Album Release Party For "Girl On Fire"• Hotwire PR One Year Anniversary Party