For those that don't know, a "Glee Geek" or "Gleek" is an obsessive fan of Fox's hit show about high school singers, “Glee.” They are the exact kinds of people who, right now, should stop listening to Kurt cover "I Want to Hold Your Hand" just long enough to check out our selection of costumes inspired by the show. Whether you want to be a cheerleader or a jock, we've got you covered. But let's not kid ourselves. We know everyone wants to be Jane Lynch/Sue Sylvester. The Glee 3D movie might still be in theaters. Prove how big a fan you are by showing up to a showing, in costume, belting out your favorite tune.