Rihanna short hair This straight bob and bang hairstyle has the freedom of face contour. That means the hairstyle doesn’t depend of the kind of faces people have. If you can sport the right kind of hairstyle of Rihanna, you will surely look like sexy doll and makeover your image of being girl next door. It 's Rihanna the great singer who changes her hair very often . Its black short hair later you can see her wearing some blonde hair and different short haircuts. No wonder, it is one of the most trendy celebrity now.