Jeff (Joel McHale) is pretty much the head dude on the sitcom 'Community' (Thu., 8PM ET on NBC). Which is basically how sitcoms work. You've got your cool people, and then you've got your nerds. But on tonight's episode, Jeff suddenly loses all his "cool" powers. Then he finds himself upstaged by Abed, the nerd character (played by Danny Pudi). Yes, Jeff has lost his "mojo." Will he be able to get it back?

Watch the video after the jump.