[Anthony Haden-Guest, Cynthia Rowley. Photos by JOE SCHILDHORN for PMc]

Last night Proenza Schouler, along with Larry Gagosian and Antonio Homem hosted the Rx Art Party honoring Jeff Koons at Milk Gallery with sponsor Grey Goose. Koons "will be placing his signature elephants, topiary dogs and inflatable rabbits at the Advocate Hope Children's Hospital in Chicago to promote a cheerful atmosphere in an otherwise scary place for kids." [Paper Mag].

More story and photos below:

Guests included Amy Greenspon, Derek Blasberg, Jack McCollough, Anthony Haden-Guest, Cynthia Rowley, Emma Snowdon-Jones, Sue Stemp, Genevieve Jones, Diane Brown, Lazaro Hernandez, Dr. Lisa Airan, Nicki Eicher, Rebecca Guinness and others.