"Bad Reputation" is the seventeenth episode of the American television series, Glee. The episode premiered on the Fox network on May 4, 2010. It was directed by Elodie Keene, and written by series creator Ian Brennan. In "Bad Reputation", cheerleading coach Sue Sylvester (Jane Lynch) is publicly ridiculed when a video of her dancing to Olivia Newton-John's "Physical" is posted on YouTube.