Mary-Kate and Ashley Olsen hit the red carpet last night for the Women in Need benefit in NYC. The event was held to honor Karen Katz, CEO of Neiman Marcus, and Gina Saunders, CEO of the Fairchild Fashion Group. Mary-Kate and Ashley aren't strangers to rubbing shoulders with the city's powerful women — they recently linked up with Diane von Furstenberg for the CFDA nominations ceremony, where the sisters picked up a nod for their work on The Row. Mary-Kate has been by Ashley's side more than ever over the past few weeks following the latter's split from boyfriend Justin Bartha. They jet between the East and West Coasts regularly, hosting parties with starlets like Nicole Richie and Dakota Fanning in LA and returning to the Big Apple with Ashley's French bulldog. They've still found time, however, to continue expanding their fashion empire with their just-announced new online venture called StyleMint.