Last night in NYC, Marc Jacobs and Rose Byrne partied at No.8 for the "I'm So Excited!" after party, Natalie Joos, Claire Distenfeld, and Anya Siourova hosted a champagne reception for the launch of Sabine Ghanem’s jewelry line, Maggie Gyllenahaal joined Donna Karan at the Ubuntu Education Fund Gala, and so much more!

Last night in NYC, Vanity Fair kicked off the Tribeca Film Festival with a star-studded bash at the State Supreme Courthouse, Reed Krakoff was honored at The Whitney Museum's 22nd Annual American Art Award, Yoko Ono and Maggie Gyllenhaal stepped out for the 2013 Riverkeeper Fishermen’s Ball on the Hudson River, and more!

[Amanda Hearst, Georgina Bloomberg] [Alexa Chung, Cynthia Rowley, Derek Blasberg] [Waris Ahluwalia, Laure Heriard Dubreuil]

Last night in NYC, Derek Blasberg invited his friends to the St. Regis Hotel for afternoon tea to celebrate the launch of his new stationery collaboration with Opening Ceremony, Mayor Bloomberg stepped out with his daughter Georgina for the Humane Society's "To The Rescue" gala, Uma Thurman attended the 10th Annual Benefit Auction at Christie's, and so much more!

[Anne Hathaway, Hugh Jackman] [Emily Weiss, Johan Lindeberg] [Quentin Tarantino, Sam Rockwell, Jamie Foxx] [Karlie Kloss, Constance Jablonski]

Last night in NYC, Balmain launched the Le Pierre bag, designed by Olivier Rousteing and Aurélie Bidermann, the Whitney Museum hosted its annual gala, Anna Hathaway honored Hugh Jackman at the 27th annual Museum of the Moving Image salute, Leonardo DiCaprio, Uma Thurman, and Quentin Tarantino graced the red carpet for the "Django Unchained" premiere, and more!

[Lenny Kravitz, Demi Moore] [Laura de Gunzburg, Vladimir Restoin Roitfeld] [Chelsea Leyland, Laure Heriard Dubreuil, Sophia Sanchez]

Last night in Miami, Demi Moore and Lenny Kravitz got cozy in the VIP area at Soho Beach House for Chanel's beachside BBQ, Laure Heriard Dubreuil hosted a cocktail party for the Interview & Valentino Pop Pois collection, Bruce Weber stepped out for the world premiere of his film Can I Make Music Fly, and 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!

[Brad Pitt, James Gandolfini] [Marion Cotillard, Hilda Queally] [Rose Byrne, Jennifer Carpenter via PMC]

Last night, Brad Pitt joined the rest of the cast from "Killing Them Softly" for the Cinema Society screening at the SVA Theatre and No.8 after party, sponsored by Men's Health & DeLeón Tequila. The film premiered to a star-studded crowd, including Harvey Weinstein and wife Georgina Chapman, Kanye West, Amy Adams, Marion Cotillard, Olivier Theyskens, Rose Byrne, and more. From notable man dates to major PDA couples, check out some things we learned at last night's screening.

[Darren LeGallo, Amy Adams] [Brad Pitt, Sam Taylor-Johnson, Aaron Taylor-Johnson] [Terry Richardson, Heidi Mount]

Last night in NYC, Brad Pitt and James Gandolfini stepped out for a screening of their new film "Killing Them Softly," Raekwon performed at the Gallery at Dream Downtown for The Cools' Cyber Monday celebration, David LaChapelle's new exhibition, "Still Life" opened at Paul Kasmin Gallery, and more!

[Jerry Seinfeld, Jessica Seinfeld, Gwyneth Paltrow, Jake Gyllenhaal]

On Sunday night, The Hollywood Reporter and Samsung Galaxy SIII hosted the screening for End of Watch at Goose Creek, the private home of Bryan Bantry. Samsung Galaxy SIII phones were used for check-in and guests were gifted with a certificate for a free phone and their new white glove service. More»

Over the weekend, The Kills performed an epic concert at the Surf Lodge deck after sunset, Topshop hosted a three-day pop up shop with live music from Chairlift and Mia Moretti & Caitlin Moe, Dolce & Gabbana presented their fall 2012 collection at a Hamptons Luncheon, Gwyneth Paltrow and Jake Gyllenhaal stopped by the private home of Bryan Bantry to watch the private screening of End of Watch, and so much more! More»

Monday night marked the presentation of the new Stella McCartney Spring 2013 collection. The event, which was sponsored by Belvedere Vodka, took place at the Marble Cemetery. McCartney's unveiling included a series of carnival type stands to keep guests of all ages entertained, and also featured designer cocktails, and appetizers. More»