Rihanna gets 'Rude Boy'

Boy-o, how far Rihanna has come since her dancehall days of "Pon de Replay."

It's only been five years since she hit the scene with that single, but when compared to her latest track, "Rude Boy," it's like two lifetimes have passed. If I didn't know better, I wouldn't have guessed that they were the same person.