It certainly looks like Luke Bryan punched a guy during a recent concert in Nashville...

UPDATE:

Luke Bryan's team has issued a statement (from Rolling Stone) about the incident that occurred saying,

"A man in [the] front row was making crude hand gestures toward Luke during his performance. It was insulting not only to him, but more importantly to the men, women and families sitting around him who were there to support and celebrate Charlie Daniels and the efforts of raising money for the military veterans – some of who were in the audience. The concert security personnel saw the man's disruptive actions of the event and he was escorted out."

Source: Rolling Stone

You can watch the video and make your own deduction...

Evidently, as Nashville Gab reports, the guy in the front row was antagonizing Luke as he performed on stage.  So, Luke Bryan did something about it...

Source:
Nashville Gab And an even better view can be seen here..