Badass or just plain bad? Ne-Yo and Pussycat Doll Nicole Scherzinger mean-mugged for the camera at the Gnarls Barkley after-party at Hush in L.A. Our advice: Stick to smiles, and leave being gangsta to the pros.

"Gossip Girl" co-stars, roommates and friends Chace Crawford and Ed Westwick are still thisclose. The twosome showed up at a recent show by Brit popsters The Ting Tings, and a spy says "they were never more than a foot apart. It was freaky. If one moved two feet to the left, so did the other." The duo also chose to ignore the hordes of flirty girls trying to get their attention, says our spy: "They were only interested in each other."

Mary-Kate Olsen and her bodyguard mingled hesitantly with the plebs Saturday at the Adidas Fanatic VII soccer tourney at Waterside Park. Onlookers say she cheered for the Kid Robot and Ernest Sewn company teams. And we thought she only showed up for the free barbecue!

Tennis star Serena Williams cozied up to on-again boyfriend Common at the McDonald's Big Mac 40th Birthday Party last weekend in Malibu.

"Brideshead Revisited" stars Matthew Goode and Hayley Atwell palled around at the Cinema Society & Victorinox after-party at Gramercy Park Hotel.

What designer's grandson was a "tiny terror" at Super Saturday in the Hamptons last weekend? As Lorraine Bracco, Christy Turlington, Kelly Ripa and 1,500 others shopped at the Ovarian Cancer Research Fund benefit, "The kid was a category 5 tornado," one shocked shopper tells us, "knocking over clothing and displays." He then lifted a woman's dress, and, the source adds: "Neither his mother nor a nanny bothered to intercede. [The mom] didn't seem the slightest bit embarrassed." Finally, after several hours of misdeeds, the child was taken home.

Meanwhile, if you're in the Hamptons this weekend and want to help the seals, sea turtles, dolphins and whales that are getting stranded off the South Shore and New York Harbor (3,369 since 1980), the Riverhead Foundation for Marine Research & Preservation holds its casino dinner Friday at the Atlantis Marine World Aquarium in Riverhead. Or donate at www.riverheadfoundation.org.

NY Daily News