• Are Michelle Williams and Spike Jonze planning to head down the aisle this summer? That's what the Star claims, since the two have been together "almost a year" and supposedly "don't see why they should wait much longer." As good a reason as any! [Star]
• Sam Ronson changed her relationship status on Facebook to "It's complicated," and says she and LiLo have started talking again, which may mean they're getting back together. [Us]
• Mary-Kate Olsen "kept touching" actor Bradley Cooper at a Tribeca Film Festival party, which could be a sign that they might be dating. [NYDN]
• Parker Posey showed off her new man at the festival, too. She's dating a sculptor named Scott Lenhardt. [NYM]

The Tribeca Film Festival opened last night with the premiere of Whatever Works, Woody Allen's latest production, which stars Larry David, Patricia Clarkson, and Evan Rachel Wood (left). In attendance at the Ziegfeld and afterparty at the Royalton: The writer/director accompanied by child bride Soon-Yi Previn, along with Debra Messing, Harvey Keitel, Robert De Niro and Grace Hightower, Mary Kate Olsen, Uma Thurman, Cheryl Hines, Harvey Keitel and Daphna Kastner, Brian and Jane Williams, Charlie Rose, Morgan Spurlock, Charlie Rose, Craig Hatkoff and Jane Rosenthal, Jonathan and Lizzie Tisch, Les Moonves and his daughter, Melissa Leo, Morgan Spurlock, and Todd Haynes. A few photos after the jump. [NYO, VF, Wireimage, PMC]

Mary-Kate Olsen walking downtown in sneakers ... Beyonce getting out of an SUV in Midtown with an umbrella in hand ... Angelina Jolie on the set of Salt ... Evan Rachel Wood getting in a cab outside Rose Bar ... Madonna entering a "medical center" uptown and later leaving the Waverly Inn with Jesus Luz ... Kate Winslet entering a building with her daughter ... Brad Pitt taking flying lessons at a Long Island airport ... Kim Kardashian walking under an umbrella in Midtown ... Zoe Kravitz holding coffee on the set of her new movie. Twelve ... and Jennifer Lopez leaving the St. Regis Hotel on East 55th Street.

Gwyneth Paltrow carrying daughter Apple after lunch Da Silvano ... Howard Stern walking home from a workout with his daughter Ashley ... Agyness Deyn getting a drink at Liquiteria on Second Avenue ... Mary-Kate Olsen leaving her apartment in the West Village ... Hugh Jackman riding Razor scooters around the Village with his daughter Ava ... Kristen Johnson walking her dog downtown ... Michelle Williams kissing Spike Jonze on the sidewalk ... and Matthew Broderick walking to his birthday dinner at Gradisca on West 13th with Sarah Jessica Parker and their son James.

[Mary-Kate Olsen in Manhattan today; image via Splash]

Yves Saint Laurent sponsored the Metropolitan Opera's 125th Anniversary Gala at Lincoln Center on Sunday night. YSL creative director Stefano Pilati was on hand to welcome the likes of Brooke Shields (left), Claire Danes, Claudia Schiffer, Kanye West and Amber Rose, Parker Posey, Kim Heirston, Mia and Patrick Demarchelier, Diane Kruger and Joshua Jackson, Richard Meier, Jeremy Irons, Willem Dafoe, Ingrid Sischy, Emily Mortimer and Alessandro Nivola, Sally Singer, Woody Allen, Stefano Tonchi, James Levine, Renée Fleming, Peter Martins, Julianna Margulies and Keith Lieberthal, Zoe Saldana, Daphne Guinness, Julie Macklowe, Plácido and Marta Domingo, Ginnifer Goodwin, Becki Newton, Patricia Clarkson, Austin Scarlett, and Met mega-donor Mercedes Bass. [PMc, Wireimage, Style.com, VF, FWD]

[Mary-Kate Olsen arriving at the Met for their 125th Anniversary Gala yesterday; image via WENN]

• A preview of what's planned for Milan Fashion Week. [Vogue UK]
• Roberto Cavalli isn't the only designer in Milan grappling with the gloomy economy: The parent of Gianfranco Ferré is now bankrupt, and some Italian designers are hoping for a government bailout. [NYT, NYM, Telegraph]
• You won't find too many Americans shopping in Milan these days thanks to the economy and dollar. Ukrainians, however, are everywhere. [IHT]
• What recession? The champagne flowed in London this week. [Fashionista]
• Michelle Obama debuted a new hairdo last night! [NYM]
• Mary-Kate and Ashley Olsen have a new men's line in the works. [WWD]
• Fashion's "10 most controversial obsessions." [Pipeline]

Magnus Berger and Tenzin Wild's The Last Magazine threw a party last night to celebrate its second issue and the end of Fashion Week. Guests included Alexander Wang, Phillip Lim, Richard Chai, Michael Stipe, Gabi Asfour, Byrdie Bell, Vladimir Restoin-Roitfeld, Zoe Kravitz, Daisy Lowe, Stavros Niarchos, Natasha Poly, Derek Blasberg, Julia Stegner, designer Robert Geller, PC Valmorbida, Justin Portman, and Jamie Burke. [PMc, Wireimage, GoaG, SF]

Rachel Bilson shopping on the Lower East Side ... Kate Beckinsale talking to David Spade outside her hotel ... Mary-Kate and Ashley Olsen shopping at Barneys ... Katie Holmes carrying coffee on a walk downtown ... William H. Macy and Felicity Huffman walking on Madison after leaving lunch at Nello's ... Kirsten Dunst hailing a cab ... Justin Timberlake leaving an office building ... Nicole Richie carrying her baby Harlow around Chelsea Piers ... Claire Danes holding hands with Selma Blair on Bank Street ... Agyness Deyn walking with a friend downtown ... Angelina Jolie waving to photographers outside an apartment building ... Paris Hilton going to dinner at La Esquina ... and Ally and Tommy Hilfiger leaving the Waverly Inn.

Barack Obama's people might throw East Coast media elite parties at the Four Seasons, but they totally make up for it with that penny-pinching cabinet member from Kansas.

• Bruce Wasserstein has been keeping busy. In between splitting up with his third wife and marrying his fourth, he found the time to have a baby with a recent Columbia Business School grad, with whom he's now sharing custody of a 10-month-old girl. [P6]
• The LAPD have launched an investigation into who leaked a confidential photo of a battered and bruised Rihanna to TMZ. [TMZ, E!]
• Whitney Port said this week that Olivia Palermo can be "very difficult to worth with," and that she occasionally wants to "slap her." Join the club. [AH]
• Madonna is reportedly planning to use the Vanity Fair Oscar party on Sunday to introduce Jesus Luz to the world as her new boyfriend. [OK!]
• Portia De Rossi is reportedly preparing to undergo IVF so she and Ellen DeGeneres can have a baby. [SFGate]

Tommy Hilfiger and Dee Ocleppo carrying grocery bags on Madison Avenue ... Woody Allen attending last night's Knicks game ... Hugh Jackman getting into a car outside his Perry Street apartment building ... Chanel Iman arriving at JFK ... Spike Lee walking on Central Park South ... Mary-Kate and Ashley Olsen going to lunch at Soho House ... Kirsten Dunst crossing the street in Tribeca ... Michelle Williams and daughter Matilda walking in Brooklyn ... Julianne Moore hailing a cab in the meatpacking district ... Josh Hartnett jogging downtown ... Rachel McAdams dressed up on the Sherlock Holmes set in Brooklyn ... Joan Cusack walking into a hotel on Central Park South ... Edie Falco pushing daughter Macy in a stroller at JFK ... Slumdog Millionaire star Freida Pinto shopping at Fred Leighton on Madison Avenue ... and Kate Winslet leaving her apartment in Chelsea.

Violating an unspoken Hollywood rule of engagement—no matter how undeserving or mink-clad you might deem them to be, you never, ever scribble indelible unpleasantries on a celebrity's Walk of Fame star—an unseen hand has written "FUR HAGS" beneath the names of Mary-Kate and Ashley Olsen. An Olsen fan site attributes the defacing to PETA, who've pulled a similar stunt in the past on Sharon Stone's star—but word on the street has it that local hot-headed reactionary Chewbacca was spotted fleeing the scene with a Sharpie clenched in one paw, shouting, "MRrraaawwwwahhwwgrrrraah," which translates to, "You have the blood of a thousand Wookies on your hands, you unfeeling, stole-wrapped, two-headed Olsen monster!"

[Mary-Kate Olsen leaving her Manhattan townhouse today; image via Splash]

Olsen twins' new career: judging drag queens on cable. [NYDN]

12/24 — An OLSEN at the cafe next to American Rag... and she was eating!! She looked great and was shoveling food in her mouth like the rest of us commoners. ["An Olsen?" Who can be more specific? Hollywood PrivacyWatch is written by and for Defamer readers; send your sightings to tips@defamer.com.]

For some, the country's economic dire straits mean job loss, financial cutbacks, and tough choices. Mary-Kate Olsen, however, believes that "the recession" is a hip new chain store akin to Fred Segal.

Be not ashamed! Madonna gleefully hooked up with Jesus in Brazil; Bruce Springsteen doesn't apologize for buying luxury goods and Mary-Kate Olsen is downright excited by the financial panic.

• Nobody makes Harvey Weinstein wait and that apparently includes Penelope Cruz, who faced his wrath in London last week when she showed up late to a screening of Vicky Cristina Barcelona, then went up to her suite to change outfits, causing Harvey to scream, "Tell her to get her f***ing ass here right now!" [Mirror]
• So much for A-Rod. Madonna has reportedly turned her attention to a male model named Jesus, who she met in Brazil and who's now on tour with her. Less importantly, Guy Ritchie may be dating Brit heiress Jemima Khan. [P6, The Sun, People]
• Courtney Love says she's stopped taking her antidepressant medication so she can "feel the rage" when she records her new album. That sounds healthy! [Daily Express]