4. Rihanna

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Rihanna has been a pop diva for several years now, and she shows no sign of going away anytime soon. She combines talent and a strong sensual identity that men find intriguing and women find empowering. Whether she’s rocking red hair or some crazy barely-there outfit, the Barbados-born songstress is never less than someone you can’t take your eyes of, and she has used that beauty to expand her activities into acting.