Nicole Richie took her new family member, Iro, for a walk on Saturday. Nicole and her husband, Joel Madden, adopted Iro earlier this year. Nicole shared an adorable story about how her kids, Harlow and Sparrow, are adjusting to the canine's arrival during a recent stop by The Ellen DeGeneres Show. Lately, Nicole's been balancing time with her expanding family with work on the second season of Fashion Star. She returns to her role as mentor and judge on the fashion competition alongside fellow mom Jessica Simpson and designer John Varvatos. Fashion Star returns with all new episodes in 2013.