Saturday September 6th: Paris Hilton and Benji Madden did a double date with little sister Nicky Hilton and her beau David Katzenberg at Chateau Marmont. Rihanna and BF Chris Brown partied at Element. Bow Wow and Jermaine Dupri were also spotted at Chateau Marmont along with Shauna Sand. Were not sure what happened to the rest of Shauna’s outfit…