Nicole Richie Pulled All-Nighters for 'Fashion Star'

Nicole Richie keeps warm in a beanie and fur coat while catching a departing flight at LAX Airport on Thursday (January 19) in Los Angeles.

The 30-year-old Fashion Star mentor recently chatted about the upcoming NBC reality competition, which premieres March 13.

“At times we were in the design studio working all through the night. I would find myself changing [outfits] over and over again to keep my energy up and feel inspired,” she told WWD.

“I am looking forward to having women and men across America not only getting to know these incredibly talented designers but also getting to buy their designs,” Nicole, who’s working with Jessica Simpson and designer John Varvatos, added. “It’s something that has never been done before.”