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Hollywood stars have plenty of reasons to celebrate this week. The Twilight Saga‘s Nikki Reed marked her 23rd birthday with a sinfully sweet potion at The Sugar Factory Brasserie inside the Paris Las Vegas Hotel. Zooey Deschanel charmed a crowd of TV execs when she made an appearance to promote her upcoming FOX series, The New Girl. And Jessica Alba helped welcome the arrival of German luggage designer RIMOWA to Los Angeles’ Rodeo Drive. Click through the gallery to see these stars plus Gwen Stefani, Matthew Morrison, Paula Abdul and more celebrities inside last night’s hottest parties!

Contestants danced three times on last night’s episode of  Dancing With the Stars! The pairs performed twice before competing in a winner-takes-all dance-off, which Chelsea Kane and Mark Ballas won, putting them in the lead. Three dances also meant three times the amazing outfits! Hines Ward and Kym Johnson (left), and Chelsea Kane and Mark Ballas (right) started their nights in sparkling dresses and suits before changing into cha-cha worthy styles. The women also sported cute bangles, which the show’s costume designer Randall Christensen said are custom made. “They need to be flexible so that the man can grip her arms/wrists and still make contact with her arm for proper connections.” Christensen told InStyle. “We embellish them with crystals and jewels as needed for each costume’s design elements.” Click “See the Photos” for pics of all the looks from last night’s DWTS!

— Blakely Slater

Celebrity favorite label Alice + Olivia—fans include Vanessa Hudgens, Kim Kardashian, and Carrie Underwood to name a few—tested the waters by releasing a few pairs of shoes this spring (shop the collection here). But the company’s first full lineup of footwear is officially launching for fall… and we have a preview of what to expect! Like Alice + Olivia clothes, the shoes are party-ready with glitter fabric on high-heel Mary-Janes, laser-cut pony hair booties (shown), and funky heel shapes on pumps that come in purple and embossed python leather. “The shoes are meant to be fun,” Alice + Olivia founder Stacey Bendet told InStyle. “I think enough designers make black pumps, that is not my goal or style. These shoes make a statement on their own!” The collection, ranging from $295 to $495, hits Alice + Olivia stores and online starting July 15th.

Click “See the Photos” below to preview nine new styles now!

1. Hailee Steinfeld is the new face of Miu Miu; at 14, she is the youngest star to ever represent the brand. [Fashionista]

2. Penelope Cruz’s Armani Privé gown featured sleeves and a v-neckline, major alterations from the original runway look. [RCFA]

3. Ralph Lauren will give his first TV interview in 20 years to Oprah on Wednesday’s show. [WWD]

3. Gap is accepting clothing donations from May 19th to May29th in partnership with Goodwill. [Racked]

5. Chanel’s Fall 2011 nail colors make mineral hues metallic chic. [Stylelist]

6. OPI will debut a Miss Universe Collection at a Miss USA event on June 14th. [BeautyHigh]