Older siblings: Nicole Richie and Miles Richie
It's probably hard to compete with an older sister like Nicole Richie, but 16-year-old Sofia is doing just fine when it comes to being supercool. The up-and-coming model and style icon recently posed for ASOS Magazine and spoke about her sartorial inspiration, saying, "Fifty percent of my interest in fashion is Nicole, and fifty percent is my mum. Nicole's taught me to be myself with my style, but my mum was the one who took me to Barneys and made me care about fashion." Like Nicole, Sofia has also experimented with hair colors and length, but judging by her Instagram feed and laid-back appearances on Candidly Nicole, her personality may be just a tad more toned down than her big sister's.