A new episode isn't all Glee has in store for fans next Tuesday.

The musical comedy is also offering up new alliances and new characters, both of which are teased in the preview below.

We'll be introduced to the Dalton Academy Warblers during the installment, a rival group that features Darren Criss as Blaine, an "out and proud" student who will serve as at least a mentor to Kurt. Watch that latter character's reaction to him now, along with a snippet of how the Warblers will honor Katy Perry:

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