Over the weekend, Donna Karan hosted a private dinner and outdoor screening of "The Perks of Being a Wallflower" at her home in East Hampton, Cindy Sherman joined Rufus Wainwright at the Azuero on the Harbor benefit, Mayor Michael Bloomberg came out for David Yurman's luncheon at the 37th annual Hampton Classic, Rachel Zoe celebrated her birthday at Georgica restaurant with Brian Atwood, and so much more!