Last night Stella McCartney showed off her Fall 2012 line with Liv Tyler, Anna Wintour, and Naomi Watts, Darren Criss performed for Susan Sarandon and Alan Cumming at The Darby, Peanut Butter Lovesicle premiered their new music video at the Electric Room, Brad Pitt secured himself the Best Actor award at the New York Film Critics Awards, Harvey Weinstein and Diane von Furstenberg hosted a lunch at Monkey Bar and so much more. Last night's parties were all about the fashion and music. More»

Rob McElhenney shows off his new svelte figure, while proud soon-to-be parents Charlie Day and Mary Elizabeth Ellis show off her baby bump at the premiere party for "It's Always Sunny in Philadelphia" and "The League" in Hollywood; Zooey Deschanel, Lea Michele, Jaime Pressly, Cory Monteith, and many more of the stars of FOX turn out for the network's Eco-Casino Party—New York Fashion Week may be going OFF right now but L.A. still had plenty celebs in town this week for some star-studded throwdowns, so get all the details in this edition of Last Night's Parties. [Danny DeVito, Charlie Day, Mary Elizabeth Ellis, Kaitlin Olson, Rob McElhenney photo via] More»

Federer who? Anna Wintour has new man candy this fall. What do you do when you're under 20 and have already taken over the teen music world, perfume market and fulfilled your philanthropic duties? Take on NYFW of course! You have to admit, finding Wintour's arm to hang off of is a solid move for the lil dude. That, or he has a really good marketing team. See more photos from FNO at Dolce&Gabbana below... More»

Anna Wintour, society types, and an ultra-fashionable crowd head to Lincoln Center for ABT's Annual Spring Gala; DVF took in a preview of the High Line Section 2; Katie Couric and Whoopi Goldberg read at the Literacy Partners annual Gala; Waris Alhuwalia viewed florescent art; Topher Grace saw a movie; Paula Abdul managed to not get wasted and be embarrassing at a party and more! Last night's parties were on their best behavior. More»

[Derek Lam and Rihanna. All photos by BILLY FARRELL for Pmc] Everyone has been on Rihanna watch since "the incident" and the fashion-savvy beauty has been keeping the NYC paparrazzi busy all week starting with the Met Gala followed by shopping all over the Big Apple. Last night, RiRi and her hair-do ventured to Soho where she stopped by the Derek Lam boutique opening to show her support for the designer and his new Crosby Street location. The singer joined Lam's closest friends and family including the likes of Anna Wintour, LA Reid, Nate Berkus, Lam's longtime partner Jan-Hendrik Schlottman, Phillip Lim, Derek Blasberg, Fern Mallis, and the crutches-adorned Anne Slowey.

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[Mike Tyson. All photos by JIMI CELESTE for PMc] Stars, athletes, and music moguls came together last night at AMC Loews 19th Street Cinemas for a special screening of TYSON. Directed by James Toback, the film provides a gritty, intimate look at the near-Aristotelian rise and fall of one of the world's most controversial athletes. TYSON promises to present a more humbled, introspective version of the wrestler's hitherto explosive persona. More story and photos below... More»