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Apparently Rihanna doesn't just use her microphone for singing, she uses it for self-defense too.  A video of the star using her mic to smack a concert-goer in Birmingham on Monday night has been making its way around the internet. 

The video shows RiRi mid-song, singing "We Found Love," taking a stroll on the floor of the venue to greet fans.  She reaches her arm out into the crowd, but is pulled back by fans who appear to be latching on to her arm. 

According to E!, it seems someone in the crowd started tugging her back, at which point Rihanna is seen taking her microphone and striking it at the fan, who cannot be seen in the video.  Seconds later, a bodyguard comes to accompany her back to the stage. 

Watch below:

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