Last night in NYC, Bar Refaeli came out to celebrate Maxim's Hot 100 Party with Scott Lipps, the Crystal Fighters and Is Tropical played at Le Baron for the Encore! Live Sessions series, lifestyle blogger, Kelley Lillien threw the Ultimate Dinner Party with Town & Country in SoHo, The New Dramatists held their annual benefit luncheon, and more! Last night's parties were all about celebrating in style.

[Photo: Crystal Fighters at Le Baron via Twitter] More»

Last night in NYC, Mamie Gummer and Michelle Harper attended the Lincoln Center Institute's Junior Spring Benefit at the Bowery Hotel, Will Smith brought his family to the premiere of Men In Black 3, Faberge celebrated the opening of their New York flagship store, Chandon hosted an American summer kick-off party with the launch of their limited edition collection at SPiN, and so much more. Last night's parties were all about celebrating outdoors! More»

Last night in NYC, Cindy Sherman and Solange Knowles attended the 2012 MoMA Garden Party, Nowness hosted the launch of "Advanced Style" by Ari Seth Cohen, Cindy Crawford and Alex Rodriguez come out for Caliche Rum's New York launch party, Garbage takes over Webster Hall, and so much more. Last night's parties were full of stylish guests! More»

Last night in NYC, Nicole Richie and Jessica Stam came out for the FiFi Awards, Louis C.K. and Kevin Systrom received special achievement awards at the 16th annual Webby Awards, Amy Poehler and Stephen Colbert took home Peabody awards, and more! Last night's parties were all about award season. More»

David and Victoria Beckham mix it up with Marc Anthony and his new lady friend and fundraiser for Cedars-Sinai; Courtney Love, Brent Bolthouse and Ashlee Simpson show their support for the L.A. Gay & Lesbian Center; Kristen Bell, Jeffrey Deitch, James Franco and more step out for a special presentation of MOCA's "As It Lays"; Emma Roberts, Francesca Eastwood, Britney Snow and more hit the one-night only presentation of Tyler Shields' latest collection of photography; Khloe Kardashian, Lamar Odom, Kathy Hilton and many others attend the 19th Annual Race to Erase M  fundraiser—it was quite a busy weekend for L.A. so get comfortable as we bring you the rundown of who partied where in today's edition of Last Night's Parties. More»

Over the weekend in NYC, Avicci and Calvin Harris took over the stage during the Electric Daisy Carnival at the MetLife Stadium, foodies united at the Great GoogaMooga Festival in Prospect Park, Katie Couric and Arianna Huffington dined together at the Elly Awards, Milk Studios hosted the "Identities" Art Party, and more. Last night's parties were all about the outdoor festivals! More»

John Stamos, child star Bailee Madison and Grammy-nominee Dave Koz host a gala to benefit the lives of terminally and chronically ill children; Natassja Kinski and Marisa Tomei join Gene Kelly's widow for an evening at paying tribute to the legendary film star and the scope of his innovations in direction and choreography; Julia Roberts, Amy Smart, Julia Louis-Dreyfuss and Peter Fonda kick off their shoes for a beachside benefit for Heal The Bay in Santa Monica; Drew Brees hosts actors, Olympians, military heroes and former baseball greats for the kickoff of his celebrity golf tournament. There was plenty of action last night in SoCal and we've got all the details in this TGIF edition of Last Night's Parties! More»

Last night in NYC, Will Arnett spun for the official Internet Week closing party, Peter Brant II and Harry Brant co-host the opening of the Jitrois pop-up store opening, Shenae Grimes lights up the Museum of Art and Design's L.E.D. Ball, Rebecca Minkoff geeks out at the StyleCaster Internet Week party, and more! Last night's parties were all about wrapping up internet week.

[Photo: Harry Brant, Peter Brant Jr.] More»

Last night in NYC, Susan Sarandon attended the Wall Street Journal's "Donor of the Day" celebration at the Whitney Museum, Vogue and the CFDA welcomed designer Uma Wang to New York at the W Downtown, Kieh's unveiled their "Meet Mr. Bones" installation designed by Alicia Keys, Terry Richardson, and Zach Galifianakis, and more. More»

Ke$ha and Lou Adler ditch their signature looks for what could even be construed as formalwear for the 60th Annual BMI Pop Awards at the Beverly Wilshire, where Carole King is honored; Rosie Perez, Tracie Thoms and Diane Neal join Montblanc North America CEO Jan-Patrick Schmitz to announce the 2nd annual 24-Hour Plays Los Angeles charity event; battle rapper Supernatural freestyle raps the new lineup for Rock The Bells 2012, which will be a full weekend event this year featuring a reunited Bone Thugs N Harmony; Scott Caan, John McGinely and Josh Duhamel hit the links for Omega watches in Palos Verdes Estates. Tuesday was an activity filled day for our town's rich and beautiful (or in the case of Lou Adler, just rich), and we've got the rundown in today's Last Night's Parties! More»

Last night in NYC, Kanye came out to Tom Sachs' private preview of space program's on Mars at the Park Avenue Armory, Diane von Furstenberg attended the Whitney Museum's Art Award Gala, Beach House rocked the Bowery Ballroom, Joan Rivers honors Annie Leibovitz at the CLIO Awards, and more! Last night's parties were all about the arts! More»