Between recovering from New York Fashion Week, the beginning of the European shows, and the start of Social Media Week, it would have been easy to overlook Rihanna's special day. But, since you only turn a quarter century once, we wanted to take a little time to take a journey down memory lane and look back at how Queen RiRi's beauty looks have evolved since she first popped into our lives 8 years ago. From "good girl gone bad" long hair to her "unapologetic" shaved head, click through to see the beauty chameleon's ever-changing style over the years.