Just in case you had any doubts, Glee fans, rest easy: Sue Sylvester will not suffer from any sophomore slump on season two.

The hilarious cheerleading coach is back and at her snarkiest on the September 21 premiere, as evidenced by the clip below. In it, she explains the difference between New Directions and the Cheerios (hint: it has to do with pigeon eating and a summons).

Enjoy the sneak peek now and then join fellow readers in our Glee forum:

[video url="http://www.tvfanatic.com/videos/glee-season-premiere-clip/" title="Glee Season Premiere Clip"] [/video]

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