Ever listened to karaoke and wished you could weigh in on the performances? Now you've got the chance when the improv masters at Chicago's Under the Gun Theater present Mic Fight. You pick the winners when four karaoke teams put together impromptu routines based on that night's predetermined theme. The winners from each week then move on to the grand finale and the chance to win The Diva Cup. Channel your inner American Idol judge and spend a Thursday night at Under the Gun Theater.