In 1993 Conan O'Brien got an audition for the Late Night hosting gig. His mock guests were Mimi Rogers and Jason Alexander. That audition resurfaced on the Team Coco website. In the end, he got the job, got momentarily promoted to THE job, and then landed on TBS. All because of one audition. Changed his life. I wonder if he'd be bagging groceries if he lost it to someone else?