Ladylike lace was de rigueur for guests Kate Bosworth and Lake Bell at Christopher Bailey’s L.A. tea party in honor of Burberry Beauty’s launch. Bosworth looked lovely in a belted frock from Burberry Prorsum’s pre-fall 2010 collection. Other attendees at the garden fete included Jayma Mays, Rachel Zoe, and Serena Williams.

At last night’s ESPY Awards, Ashley Greene (a.k.a. Twilight’s Alice Cullen) looked red-hot in a Versace minidress with a high neck and asymmetrical hem, which she accessorized with a PADMA by Padma Lakshmi nine-stone cuff.

Last night saw both the season finale of The City and the series finale of The Hills. And Whitney Port stepped out to celebrate the latter at L.A.'s Roosevelt Hotel, wearing a showstopping frock from Matthew Williamson's spring 2010 collection.

While Julianne Moore wore a full-length floral frock to the premiere of The Kids are All Right, her onscreen daughter Mia Wasikowska went for an edgier look. The blond Alice in Wonderland actress opted for a sheer black-and-blue ribbon-and-lace dress from Rodarte’s spring 2008 collection.

Salma Hayek went for a sophisticated look at the New York premiere of Grown Ups, which follows the adult reunion of five former high school basketball teammates. The brunette beauty wore a strapless white number from Yves Saint Laurent’s resort 2011 collection, adding red suede accessories for a double pop of color.

Lauren Conrad is the latest dairy enthusiast to don a white mustache for the “Got Milk?” ad campaign. At the ad’s unveiling, the designer, author, and The Hills alum, wore a ruffled navy jumpsuit by Phillip Lim, adding structure with a woven belt.

Last night, while Gleeks everywhere gathered to watch Glee’s season finale—complete with a Journey medley and the long-awaited birth of Quinn’s baby—star Lea Michele stepped out for the launch of celebrity hairstylist Mark Townsend’s MARKTBeauty.com. The actress paired a nude chiffon dress from Giambattista Valli’s spring 2010 collection with a black lace bra and black pumps.

At The A-Team’s Mexico City premiere earlier this week, Jessica Biel opted for a fresh floral ensemble by Erdem. But at last night’s Los Angeles premiere, she went with a show-stopping number from Emilio Pucci’s fall 2010 collection —a white goddess gown with a peek-a-boo black-lace detail and a striking slit for drama.

Bryan Goluboff’s Beware the Gonzo, which stars Ezra Miller, Jesse McCartney, and Zoe Kravitz, follows a teen journalist’s efforts to give a voice to his school’s outcasts through an underground student newspaper. At the film’s world premiere at the Tribeca Film Festival last night, the always-lovely Kravitz looked anything but a high school misfit, in an elegant copper cocktail dress from Zac Posen’s fall 2010 collection, which she accessorized with Lucifer Vir Honestus rose-gold and diamond bangles and a rose-gold frog statement ring.

Raising funds for a worthy cause never looked so chic: At the Jenesse Center’s 30th Anniversary Silver Rose Gala, a benefit for families affected by domestic violence, Halle Berry sizzled in a slashed-to-perfection sheath by Gucci and gray Louboutin pumps. Other A-list attendees included Alicia Keys, Leona Lewis, and Jamie Foxx.