Consider yourselves warned this fall, William McKinley High School students who mocked the New Directions in the past:

These Sectional champipns are now armed with slushees - and not afraid to use them!

In a new set of promotional photos, the show's key cast members pair up and gleek out. Click on each picture below to enlarge it and get psyched for the September 21 return of the most musically endearing show on television.

** In preparation for season two, remember:

• Visit our Glee spoilers section for the latest scoop.
• Browse through the largest collection of Glee quotes on the Web for sheer hilarity.

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