Band Or Solo Artist?: Solo
Genre: Pop, R&B, Reggae, Dance, Hip-Hop
Greatest Hit: "Umbrella" (2007)

Five years ago, Rihanna was the cute girl next door from Barbados. These days, the multi-platinum star is a full-blown sex symbol whom every dude in the world has no shame thirsting over. She posed practically naked this month of the cover of GQ as the "Obsession of the Year" and dropped her most personal album, Unapologetic, last month. Whether it's her hot tattoos or her partying ways, Rihanna stays sexy and on top of the game.