Forget about the whole Chris Brown thing for a moment. Rihanna's career is much more interesting. In under a decade, she's made herself into a genuine pop icon. And really, who is there who more wholly symbolizes pop music in our era? She's already released 47 singles (including songs by other artists that she's featured on) and is one of the top-selling artists of all time. That's 25 million records and 75 million singles sold; and they say people don't buy music anymore. She fuses hip-hop, R&B, pop and even some really gorgeous piano ballads. But part of what makes her singles chart song after song is how amazing her voice is, which she never overdoes.