Jackson Lee-Elatab-Meinelt/ Splash News Online
10/23/2008 AT 06:00 AM EDT
, venturing out to one of her favorite L.A. haunts without
on-again beau John Mayer
. The actress spent an evening at the Sunset Tower Hotel with Top Design
judge Kelly Wearstler
and other girlfriends. "She looked happy," an onlooker says of Aniston, who dressed in all black. "Even radiant."
, surprising audience members at the Mad Men
Live Review performance presented by Chivas Regal at L.A.'s El Ray Theatre. The actress chatted with the wife of the show's music composer David Carbonara
before watching the revue, which featured music from the show and performances by cast members. Garner headed upstairs to the VIP room before the performance, but decided to watch the show at a table up front next to the show's star Christina Hendricks.
Who knew Audrina Partridge
was a car lover? At the Galpin Auto Sports Grand Opening party in Los Angeles, the Hills
star jumped into the customized Mustang on display – valued at over $1 million – and seemed totally comfortable behind the wheel. Why? Patridge's father loves custom cars, a sources tells us, and has shared his hobby with his daughter.
, rising to his feet as Olivia Newton John
gave a surprise performance – and not at a public concert. The pop star performed at the wedding of Marquis Jet cofounder Jesse Itzler
and Spanx founder Sara Blakely
in Boca Grande, Fla. Damon attended the ceremony with his wife Luciana,
who also cheered on the musical entertainment.
, partying at Sin City hotspot Prive Las Vegas with a brunette female and five friends. The Olympic champ arrived at the Planet Hollywood Resort & Casino nightclub just after midnight, hanging out for a bit at Prive's exclusive Table 69 before stopping by the deejay booth. He rejoined his group at a VIP table – and got affectionate with his gal pal.
Here's a scoop: Even when the cameras aren't rolling, Gossip Girl
stars Chace Crawford
, Ed Westwick
and Jessica Szor
hang out together. The casual trio were spotted at New York's Westside Tavern, palling around with the bartender and playing pool in the back. Westwick also took smoke breaks outside and made time to pose for pictures with a fan.
By REAGAN ALEXANDER, KRISTIN BOEHM, JENNIFER GARCIA, MARK GRAY, MAUREEN HARRINGTON and LESLEY MESSER
Want to see where the celebrity action goes down? Tour all of the Celebrity Hot Spots.Wednesday's Caught in the Act >