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. **t 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 ho**r of Nicole's big day, click through to see her epic metamorphosis over the years.