Rihanna got angry when a fan refused to let go of her arm as she walked through the crowd and  instead of asking the security men to deal with the issue, pop star decided to hit the fan in the face with her microphone.

The fan can be heard screaming in pain after the attack by Rihanna. Sources say, Rihanna is unapologetic about the whole issue. This incident happen at a concert in in Birmingham, UK

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