Celebrity Transformations Happy 24th Birthday Rihanna! By InStyle Editors InStyle Editors Facebook Instagram Twitter Our editors and writers comprise decades of expertise across the beauty, fashion, lifestyle and wellness spaces in print and digital. We prioritize journalistic integrity, factual accuracy, and also having fun with every story we share. InStyle's editorial guidelines Published on February 20, 2012 @ 02:00AM Pin Share Tweet Email Photo: WENN; Zuma Rihanna turns 24 today! To celebrate, we're taking a look back at her best beauty looks from her cute brown curls, to her blond bombshell waves. Click through our gallery to see her most memorable looks! MORE:• 50 Most Memorable Beauty Moments• Rihanna's $5,000 Grammy Manicure • Rihanna's Armani Ads: See the Photos!