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Days two and three of the tennis tournament saw Amanda Seyfried, Brooklyn Decker, and Rosie Perez among those watching the ballsy back-and-forth, while models filled the Moët & Chandon lounge. Also present: LMFAO’s Stefan “Redfoo” Gordy, in desperate need of a headband to call his own. See all of their photos and more in our updated slideshow.