Nicole Richie turns 33 on Sunday! To celebrate the big day, we're taking a look back at Nicole's pretty radical transformation over the years, from her days of partying with Paris Hilton and Lindsay Lohan to her current status as a wife, mother, and all-around style star. While there may have been some bumps in the road throughout her career, it's safe to say that Nicole has come out on top. Not only is she devoted to her adorable family, but she's also a bona fide businesswoman juggling multiple fashion lines, children's charities, and stints on shows like Project Runway and #CandidlyNicole. In honor of Nicole's big day, click through to see her epic metamorphosis over the years.
Source: Getty / Gregg DeGuire