Caught in the Act!
11/09/2010 AT 06:00 AM EST
With their Twilight costars in Brazil, Kellan Lutz and Ashley Greene were celebrating a pal's birthday at Boudoir in L.A. The newly single Lutz enjoyed an upbeat night with Greene and his pals. "They were laughing and chatting," an onlooker says of the Twilight stars. They were also dancing as DJ Mister Mike played '90s music.
Newlywed David Schwimmer dined out at West Hollywood's Chateau Marmont, sans new wife Zoe. The actor met an older male friend, and the two enjoyed their meal in a corner of the back patio, where they appeared to be talking business. Also there: Marion Cotillard, who shared a leisurely dinner – more than three hours! – outside with her friends.
John Mayer, taking in the season finale of Eastbound and Down with a party at Levi's Photo Workshop in New York. Inside, the musician admired the Richard Kern photo exhibition – large-scale portraits of the cast – while guests could mingle, enjoy batting cages and beer.
Former Bachelor winner Vienna Girardi, getting her sweet fix at the Sugar Factory inside Las Vegas's Planet Hollywood Resort & Casino. The reality star sampled lots of treats, including the signature couture pops, before heading out.
By JENNIFER GARCIA, JESSICA HERNDON, MELISSA LIEBLING-GOLDBERG and JESSICA WEDEMEYER