It appears that LB hit a man in the crowd at benefit concert in Nashville. See for yourself in the video below.
Luke has issued a statement on the situation:
“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.”