Based on what we've seen of Glee, the show doesn't need any guest-starring stunts to reel in viewers this fall.

But this sounds intriguing:

Hit singer Josh Groban will make a cameo on the series. According to the star, he'll play a version of himself on the show that is an “absolute jerk.”

That's all we can report for now, but considering the down-to-earth, humble persona Grobin has established for himself, we can't wait to find out what this entails.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.