Ashley Greene Honored with Fancy Dinner at Chateau Marmont

It was Ashley Greene’s time to shine recently, at West Hollywood hotspot Chateau Marmont, where the Twilight star was celebrated for being on the cover of Nylon magazine’s denim issue, wearing jean Element Eden “Idol” shorts.

Joined by other folks, including Chord Overstreet, Brent Bolthouse, stylist Johnny Wujek and the magazine’s Editor-in-Chief Marvin Scott Jarrett, the actress “seemed in great spirits,” an onlooker tells PEOPLE, adding, “She was mingling with guests.”

Katy Perry & Audrina Patridge Rock Out to the Same Indie Band

Katy Perry is used to being the one on stage, but on Monday night, she was able to relax to the sounds of a live act other than her own.

The “Teenage Dream” singer took in a show by British indie pop band The xx, who hadn’t performed in the U.S. in two-and-a-half years.

Perry, in a large bohemian-style black hat and a floor-length floral dress, hung toward the back of the Fonda Theatre in L.A., where the show was held.