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Jackson Rathbone teamed up with Ashley Greene (in Narciso Rodriguez) to represent the cast of  The Twilight Saga: Breaking Dawn Part 1 at the flick’s Canadian premiere in Toronto. Click through to see Eva Longoria, Justin Timberlake and more stars at last night’s hottest parties!

Nikki Reed (in Michael Kors) and Ashley Greene (in Donna Karan) both worked chic cut-out gowns at the New York City premiere of The Twilight Saga: Breaking Dawn Part 1, hosted by the Cinema Society & DKNY. “Grateful 2 our incredible fans… and to Donna Karan for my gorgeous dress!” Greene tweeted. Click through to see more stars at last night’s hottest parties!

Ashley Greene joined Fergie to celebrate women’s empowerment at the Avon Foundation for Women Global Voices for Change Gala, held at New York City’s Marriott Marquis Times Square. “Such an inspirational night!” Greene tweeted of the event, which raised $2.3 million to fund domestic violence awareness programs and breast cancer research. Click through to see Emma Roberts, Sarah Jessica Parker and more stars at last night’s hottest parties!

Check out Alice Cullen’s bridesmaid dress for the wedding scene in The Twilight Saga: Breaking Dawn Part 1! After a few hints about the look from Ashley Greene, who plays the otherworldly character, Summit Entertainment finally released a promo photo, and you can see she’s wearing a beaded flapper-like lavender number to the Swan-Cullen wedding. “I loved it,” she told InStyle.com of the look. “It was a collaboration for the dress. We wanted to have all the bridesmaids fit together and also have their own identity. So, we took a little bit of Alice’s past and put it into her dress.” And this is the result! Tell us: Do you like it?

Plus! Click through the gallery for a sneak peek at scenes from Breaking Dawn: Part 1.