Paula Abdul, dining at Asia de Cuba at the Mondrian Hotel in L.A. The American Idol judge headed there after finalists Katharine McPhee and Taylor Hicks delivered their final performances. She feasted on calamari salad and tuna pica.
Beyonce, dancing her "butt off to every song" at the Gnarls Barkley concert at New York City's Webster Hall, says a source. The singer attended the hip-hop duo's show with beau Jay-Z and Sean "Diddy" Combs.
Kirsten Dunst, urging one of her friends to "chug" a vodka tonic at the Chateau Marmont hotel in West Hollywood. Also on hand: Ashley Olsen, smoking cigarettes and drinking white wine with an unidentified male companion.
Mariah Carey, hanging out with American Idol judge Randy Jackson and her nephew Shawn McDonald at a New York City benefit for Operation Smile. The singer told us that though she's been on a "really bleak diet, which is basically soups and fish prepared really blandly," she recently indulged in a slice of pizza. "I had to do it," she said.
LAN / Retna
Pamela Anderson, hobnobbing with Sting, Sheryl Crow and other performers at a gala dinner at New York City's Pierre Hotel following the Rainforest Foundation's benefit concert at Carnegie Hall. Also in attendance: Will Ferrell, Michael J. Fox and James Taylor.
Celebrity chef Anthony Bourdain, holding court with a group of friends at chic New York City eatery Aquavit.
Rosie O'Donnell and partner Kelli Carpenter, snapping pictures of pal Madonna at the opening night of the singer's Confessions tour in Inglewood, Calif. Also on the scene: Salma Hayek and Nicole Richie, hugging each other when they ran into one another in the audience. At a dress rehearsal the night before, Demi Moore and her daughters checked out Madonna's warm-up show. Afterwards, when they went backstage to visit Her Madgesty, Moore "was all charged up," says a source.
By ANNEMARIE CRUZ, CARRIE BORZILLO-VRENNA, MARK DAGOSTINO, LIZA HAMM, SHIRELY HALPERIN, SERENA KAPPES, AMY ELISA KEITH, TIFFANY MCGEE and JENNIFER ODELL