Nicole Richie had a busy weekend of events in LA. She was out on the town Friday to celebrate her new cover of DuJour magazine with publisher Jason Binn at the SkyBar inside the Mondrian Los Angeles wearing her own House of Harlow 1960 shoes and clutch. She's covering DuJour's second-ever issue — their first, with Christy Turlington, was out in September. Nicole changed into a LBD for another outing Saturday. She teamed up with Robert Shapiro for the Brent Shapiro Foundation Summer Spectacular in Beverly Hills. The socializing came after two back-to-back East Coast visits for Nicole, who's touting her new limited-edition collection for Macy's.