Rihanna hits the fan with Microphone ''HARD''

That's the moral of this story, as a concert-goer learned the hard way in Birmingham, UK, where she used a mic to take a swing at a clingy fan.

Looks like she connected hard with that thing, too. Take a look:

The incident went down as Rihanna, 25, left the stage to walk by a crowd of screaming admirers, touching their hands as she sang "We Found Love."

Then one fan held on just a little bit too long, and paid the price.

A fan-recorded video of her lashing out has gone viral, though it's unclear exactly where the fan was hit or how badly he or she was hurt, if at all.

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