*Paul Wall beat one of his fans in the head with his microphone during a concert in Texas.

Footage captured by TMZ shows the rapper performing with Slim Thug Sunday night at the Low Low Car Show in San Antonio when someone in the front row threw a middle finger in Paul’s face.

Paul can be seen exchanging a few words with the guy — right before the rapper winds up and beats him several times with his microphone.

The bird-flipper was tossed out of the show, according to TMZ, and so far, no police report has been filed.