On Tuesday's new episode of Glee, the cast will cover a couple of classics by a couple of very different artists.

First, as shown HERE, Mr. Schuester will slow it down on a version of Coldplay's "Fix You."

Now, we're excited to bring readers one of the most fun performances in Glee history and, no that isn't an understatement. Watch Brittany take on Beyonce below, singing and dancing up the kind of storm that ought to have Kurt fearing for his political future...

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