It's clear to see that Nicole Richie has grown immensely since the birth of her baby daughter Harlow. The former reality TV star rarely makes celebrity outings these days, but she oozed maturity and style as she graced New York's Fashion Week.

In a sexy electric blue mini dress, Nicole first hit a Bergdorf Goodman store, before hitting a show at Byrant Park. Joel Madden was not in attendance.