Nicole Richie dressed up for last night's Fifi Awards in NYC. The annual event, which awards prizes to top sellers in the perfume industry, is usually a big celebrity draw. In addition to Nicole, yesterday's soiree brought out Michelle Monaghan, Josh Groban, Martha Stewart, and more. Nicole wore an Emilio Pucci dress to hit the red carpet and take the stage. Nicole traveled to the Big Apple after a stint in Australia with her family. Little ones Sparrow and Harlow Madden went to the zoo with Nicole in Sydney, one of the main adventures the family enjoyed Down Under. Dad Joel Madden has had to work a bit, though, as he's a mentor on the Oz version of The Voice. Nicole is expected back in Sydney by this weekend, as she's due to make an in-store appearance at a David Jones location.