GQ Throws Fete in Honor of Kris Van Assche

Rachel Bilson, Hayden Christensen, Chace Crawford, Taylor Momsen, Mischa Barton, Josh Hartnett all attended the al fresco dinner at the Cooper Square Hotel.

At the Cooper Square Hotel, guests gathered for a rooftop fete thrown by GQ for Dior Homme artistic director Kris Van Assche.

Rachel Bilson and Hayden Christensen joined a slew of television actors, including Chace Crawford and Taylor Momsen of “Gossip Girl” and Mischa Barton of “The Beautiful Life” for the al fresco dinner, but Josh Hartnett left before everyone was seated, explaining he’s laying low this fashion week. “I did it when I first got here and it was exciting being a guy at the shows around the girls,” he said. “But now I stay away.”