Style Stars Take New York: Days Two & Three!

Sometimes the hottest looks are in the front row. See how J.Lo, Eva, Mary-Kate and more sizzle, from the tents to the exclusive parties. By Melissa Liebling-Goldberg

MARY-KATE OLSEN, JESSICA SZOHR AND CHACE CRAWFORD

Spotted: One very famous blonde actress-designer taking in the Rock & Republic show with two of Gossip Girl's hottest stars Saturday night.