Even though Ben Affleck and Jon Hamm attended the private luncheon for the cast of "The Town," we couldn't stop drooling over Blake Lively's enviable ensemble.

The new face of Chanel wore a pleated Prabal Gurung dress from the Spring 2011 collection with a crushed-satin taupe blazer. Unsurprisingly, the sandy-hued frock was shortened from the runway to show off her toned stems.

But the blond babe, who has made some questionable wardrobe choices in the past, was event appropriate with Christian Louboutin ostrich platform pumps -- she called the designer "the man of her dreams" -- and diamond drop earrings.

In related news, Lively isn't the only sartorial starlet to come off the "Gossip Girl" set, check out her co-star in these Missoni ads.

Meanwhile, find out how to get Blake's glamorous locks.