Over the weekend in the Hamptons, Lady Gaga joined Marina Abramović at the 20th Annual Watermill Center Summer Benefit, Shailene Woodley and Christie Brinkley came out for the outdoor screening of "The Spectacular Now" at The Crow's Nest, Russell Simmons hosted the 14th Annual Art For Life Benefit, and so much more! Click through the slides and take a look at what you missed this weekend on the east end.