Dierks Bentley, his band, and thousands of audience members at the Hershey Giant Center in Pennsylvania got a little surprise from a fan late last week. While performing “Drunk on a Plane”, Dierks pulled a couple fans up on stage to enjoy the party with him. Well, one of the young fans was maybe enjoying the party a little TOO much and upchucked right on the stage. Dierks then changed the lyrics to his hit song to a parody-like tune, to accompany the incident (which you can hear in the video above). A rep for the star later told TMZ that he felt really bad for the fan.