[Haro Keledjian,Margaux Guerard, Khajak Keledjian, Stella Keitel, Alex Matthiessen and Kate Hagerman. All photos via Getty] Intermix, "the fashion boutique for trendsetters, A-Listers and glam fashionistas" hosted a Kick-Off to Summer Party Saturday afternoon hosted by Amanda Hearst and Stella Keitel, actress, model, and daughter of bonafied bad-ass Harvey Keitel and Lorraine Bracco. Fashion-savvy guests including Sari Sloane, Alex Matthiessen, Kate Hagerman, Fred Sundberg, Daisy Johnson, and many more browsed and shopped inside the East Hampton location with 15% of proceeds from the summer celebration shopping event benefited Riverkeeper, an environmental organization that works to protect the ecological integrity of the Hudson River and its tributaries, and safeguard the drinking water supply of New York City and the lower Hudson Valley.

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Sari Sloane and Haro Keledjian, Khajak Keledjian and Stella Keitel