Rihanna
If 2012 taught us anything, it's that Rihanna plays by her own rules. (Don't believe us? Check out her Instagram.) But, that's definitely not a bad thing when it comes to her fashion choices. She sexed up the red carpet this year in gowns by Armani, Tom Ford, and Stella McCartney — with bold beauty looks to match — and while many of her looks were risky, we think she rocked them.