Caught in the Act!
07/17/2009 AT 06:00 AM EDT
Rumer Willis, dining with pal (and Twilight star) Christian Serratos and friends at Bagatelle in New York's Meatpacking District. "Rumer loved the risotto," an onlooker tells us. The group shared a cheese plate, a shrimp-and-avocado salad, and other appetizers while head-bobbing along to the deejay's set. "She had her arms in the air when the deejay played 'Ain't No Mountain High Enough,' " the source says.
Paris Hilton, bumping into Taryn Manning at the Gavert Atelier Salon in Beverly Hills. The two giggled and caught up before making plans to hang out soon, a source tells us.
New BFFs? Hayden Panettiere and Katy Perry, partying together at Hollywood club h.wood. They hung out all night at a VIP table by the dancefloor. "They were giggling, whispering, dancing and lip synching to the music," says an onlooker.
A few nights earlier at h.wood, newly single Nick Lachey had a guys' night out with good pal Matt Leinart. "Nick was surrounded by girls," says an onlooker. The singer sipped vodka and was "definitely in good spirits," the onlooker says.
By JENNIFER GARCIA, SARA HAMMEL, KRISTEN MASCIA and EUNICE OH
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