Pop Tarts

Pop Tarts Scene and Herd: Celebrity Sightings

'Jersey Shore' star Jenni 'JWOWW' Farley in Chicago.

'Jersey Shore' star Jenni 'JWOWW' Farley in Chicago.  (X17)

Ben Affleck sipping a Rev 3 energy drink during a press conference with Tommy Lee Jones for “The Company Men” at the USANA/Kari Feinstein Sundance Style Lounge in Sundance, while Jill Zarin hung around the lounge and picked up a Lutron lighting system for her home in NYC.

Britney Spears stocking up on spring essentials at American Eagle Outfitters in Topanga Plaza, CA, where she picked up plaid shirts, sunglasses, racer back tanks, a light pink bracelet and a pair of AE Artist jeans that wore out of the store in style.

Terrell Owens working out in his off-season by stopping at the Wii Fit Plus Fitness Club at Village at the Yard in Park City, Utah.

Susan Sarandon, Harvey Weinstein, Georgina Chapman, Selita Ebanks, Veronica Webb, Judah Friedlander, Hilary Rhoda, Russell Simmons and Rachel Roy playing ping pong to benefit Friend of the Orphans and St. Damien’s Hospital at a fundraiser for Haiti hosted by Modelinia and SPiN New York.

Ryan Reynolds and the crew of "Buried" spending an evening at the T-Mobile myTouch Diner for their pre-premiere dinner at Sundance. Reynolds was overheard talking about how had to be in bed early since he was catching an early flight to NYC to see Scarlett's new play.

Orlando Bloom, Mark Ruffalo, Adrian Grenier, Marissa Tomei, Paris Hilton, Doug Reinhardt, Tim Daly, Andie MacDowell, Wilmer Valderrama and Rachel Hunter hitting the slopes at the Oakley Learn To Ride fueled by Muscle Milk party for Skateland in Park City.

Bill Gates getting his groove on dancing at the Onitsuka Tiger Presents John Legend at Bing Afterhours bash at the Film Lounge/ House of Hype.

SLIDESHOW: Click here to see photos of the stars out and about

Pink surprising Bette Midler on stage at her Vegas show with an impromptu duet of Bette's beloved hit "The Rose."  Bette was speechless and truly surprised when Pink walked on stage and began singing. The two ladies embraced and swayed as they sang together.

Kristen Stewart rocking out alongside her “The Runways” co-star Dakota Fanning at the Joan Jett & the Blackhearts concert at Harry O’s at Sundance, but it appears as though Jett wasn’t into Stewart’s trademark ‘I-just-rolled-out-of-bed’ look. Jett requested that Stewart remove her hoodie as they posed for pics together on stage after the performance.

Controversial reality dad Jon Gosselin returning to the Talent Resources Sky Suite in Park City to grab a Jenny B message Tee that said "I'm the Love of My Life".

Tom Arnold feeling the impact of the recession while attending Skintimate's Gersh Agency brunch with his fourth wife, Ashley Groussman. We’re told as soon as he walked inside he ditched her and B-lined over to the buffet, cut everyone off, shoved food in his mouth and exited the party (sans wife) with a mouth still full of food.

Alessandra Ambrosio, along with MTV’s Erin Lucas, MTV's Adrienne Bailon and fashion designer Christian Siriano, celebrating the Love Rocks fragrance and Tease for Two edible beauty collection in NYC at the former townhouse of The Real World: Back to New York cast .

Singer Kelis putting on quite the impromptu performance prior to her real performance at the “Waiting For Superman” cast dinner at the Bing Supperclub. The “Milkshake” songstress (who was dressed to resemble the Statue of Liberty) refused to go on stage because her former husband Nas was performing across the street and “she didn’t want to compete against her ex”. She eventually took the stage when his show was over.

Mario Lopez picking up several Anastasia Beverly Hills products for his girlfriend, including the brand new Hydrating Oil and Line Erasing Serum while at Sundance.

Will Forte, Kristin Wiig and Jorma Taccone chowing down at Santa Monica’s LGO.

America Ferrera stopping by Skintimate’s "Please Give" Premiere Party to support her girlfriend and “Please Give” cast member Amanda Peet. When she walked in the owner of the house did not recognize her and made the “Ugly Betty” star take off her heels to wear hospital booties around the party! America agreed to do it, however she wouldn’t take any photos.

Matt Damon and Stanley Tucci deep in conversation at the SAG Awards post party while Justin Timberlake hung at the “Invictus” table, George Clooney partied solo and Cuba Gooding Jr. sipped on a Grey Goose cocktail as he congratulated Jon Hamm.

Snooki puffing on SmokeStik Electronic cigarettes at LAX and Coco de Ville while J-Woww puffed hers at during the Lakers game in LA. Meanwhile Pauly D and Mike “The Situation” celebrated the show's finale at JET Nightclub at The Mirage. DJ Pauly D hit the turntables giving his partner in crime, "The Situation", the perfect set to rally a slew of female partygoers to join him in "beating the beat". 

Maggie Gyllenhaal with daughter Ramona at M Café Melrose ordering chopped salads and cupcakes to-go.

Adrian Grenier, Wilmer Valderama, Jill Zarin, Kelly Monaco and Ian Ziering visiting the Fruit2day Juice bar over the weekend at Sundance.

LL Cool J greeting Duane Chapman and sipping champagne at PURE Nightclub before giving club goers a very special live performance.

New York Yankee Brett Gardner bowling at Lucky Strike Lanes & Lounge in Manhattan to help raise funds at the OTSAR event that helps children and adults with developmental disabilities.  There were prizes, dinner, and of course the chance to bowl with Brett Gardner, who got a strike! 

Malin Ackerman (donning a sexy paper leather jacket from Helmut Lang) and Kate Mara enjoying Philippe Chow’s Beijing chicken at the Bing Supper Club at Sundance. The ladies chatted and cheered about the rave reviews of their film Happythankyoumoreplease. Ackerman was also spotted heading out for some Arizona Iced Tea.

Katy Perry hosting the "Waking Up In Vegas" party at HAZE, the newest nightclub to hit the Strip at ARIA Resort & Casino at CityCenter. The songstress didn't kiss any girls, but she did treat partygoers to a live impromptu performance around 2am, singing for an ecstatic crowd that included Mickey Rourke and Cobra Starship's Gabe Saporta, who also jumped on stage with Perry.

Amy Poehler hosting the Academy of Television Arts & Sciences’ Hall of Fame dinner at the Beverly Hills Hotel. 

Nick Cannon at the unveiling of the Renaissance Hotels Dylan’s Candy Bar Suite in NYC, gushing about how this Valentine’s Day room full of candy actually outdoes his gift to Mariah Carey last year, which was a room full of balloons and roses.

Molly Simms and Garcelle Beauvais-Nilon nibbling on Crumbs Bake Shop cupcakes at the Edeyo Foundation’s Haitian Relief Fundraiser, at the home of Ron Burkle in Beverly Hills.

Donald Trump telling Brazilian supermodel/talk show host, Luciana Gimenez that she was a spitting image of his wife, Melania while she interviewed him for her Brazilian talk show "Superpop”.

Marisa Tomei, Jonah Hill, John C. Reilly, Catherine Keener and Danny McBride at the Don Julio and Movieline.com premiere after-party for Cyrus during Sundance.

Duane “Dog the Bounty Hunter” Chapman enjoying the VIP scene at Playboy Club and Moon Nightclub inside Palms Casino Resort.  

A pregnant Amanda Peet glowing at a private dinner party for "Please Give" hosted by Skintimate at the Greenhouse Actors Lodge in Park City. The actress said she was feeling great as she chatted up co-stars Catherine Keener, Oliver Platt and Sarah Steele and drank Fiji water all night.

Seth McFarland and Adam Levine singing a duet of "Just the Way You Look Tonight" at "A Night to Benefit Haiti" at Hollywood Roosevelt.

Derek Jeter enjoying a night out at Aura Nightclub at the Atlantis Resort in the Bahamas, joining a slew of celebrities that gathered to celebrate after the annual Michael Jordan Celebrity Invitational Softball Challenge. 

Jordin Sparks picking out fab accessories by Silent Gypsy Jewelry to wear to upcoming events.  

Adrien Brody, Colin Hanks and Michael Chiklis at a cast dinner for HIGH School at the Bing Supper Club.  

Dakota Fanning and Kristen Stewart heavily guarded and hiding out in the corner the entire evening while attending “The Runaways” after-party at Bing Bar sponsored by Akvinta Vodka.  

Khloe Kardashian chatting with Stephanie Pratt at the axecyb.com launch party drinking MONSTER and Belvedere cocktails while attending Sundance.