Sean Penn and Friends' second annual Help Haiti Home gala drew a stylish set of A-list heavyweights to the Montage Hotel in Beverly Hills Saturday night, all of whom were on hand to show their support and bid on the auction to benefit Haiti relief. Among the group were Julia Roberts, Eva Longoria, Minka Kelly, Reese Witherspoon, and Emma Roberts. And with a good cause at the forefront, it was inevitable that these stars would naturally bring their fashionable A-game to complement the evening's festivities, too. Unlike the more formal red-carpet Golden Globe affairs happening around town, the style scene here was all about flirty cocktail attire, the perfect black dress, and one really cool pantsuit. For a closer look at Eva's military green Emilio Pucci leather dress and a sneak peek at Reese's all-black look, just keep clicking. Have a favorite of the night? Tell us in the comments!