Nicole Richie grabbed a microphone as the host of Fashion's Night Out at the Beverly Center in LA tonight. She spoke about her fond memories shopping at the mall with her mom as a child and encouraged the crowd to check out the stores in support of FNO. Randy Jackson and Rachel Bilson were also on hand for the event, and Rachel shared her favorite boutiques and sunglasses trends for Fall. Nicole, Rachel, and Randy weren't the only ones celebrating fashion's biggest shopping night, since there were stylish soirees happening across the globe. Gwyneth Paltrow partied with Coach and Vogue in London while Rachel Zoe made an appearance at Bloomingdale's in NYC — it's just the beginning of the Fashion Week fun so stay tuned for more excitement from Manhattan.