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11/20/2013 01:16 pm ET

Allison Williams Looks Smokin' In Purple Leather Dress At CNN Heroes Event

Just what we need to hold us over until HBO's "Girls" Season 3 premiere: An eyeful of Allison Williams.

The stunning actress wore a gorgeous, skintight purple leather L'Wren Scott dress to the CNN Heroes: An All Star Tribute event held at the American Museum Of Natural History in New York Tuesday night (Nov. 19).

Williams, 24, was one of many stars at the glamorous and important event, among them Anderson Cooper, Sarah Silverman, Jason Biggs, Kelly Ripa, Alan Cumming, Mariska Hargitay, Ne-Yo, and "Pretty Little Liars" star Shay Mitchell.

allison williams

allison williams

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