If you're going to see Rihanna in concert on her current 'Diamonds' world tour, take our advice and don't get too hands-on with the singer or you could end up getting clobbered.
That's exactly what happened to one over-excited fan during Ri-Ri's recent show in Birmingham.
The singer got up close and personal with the crowd as she belted out her hit 'We Found Love' but one fan took the opportunity to grab the star and, after they refused to let go, Rihanna smacked the unidentified individual with her mic. In the face.
And don't go thinking it was an accident either. One fan later tweeted: "[Rihanna] just hit someone with her mic on accident haha oops."
To which Rihanna replied: "Purpose! That bitch won't let me go."
Two words: Don't mess.
Watch a fan-recorded video of the incident above.