We've got a first look at the Troubletones' performance for Sectionals -- and New Directions has some serious competition!
Sneak peek video from next week's "Glee" was released this morning -- showing Santana, Mercedes and Brittany's all-girl group singing an amazing mash-up of "I Will Survive" and Destiny's Child's "Survivor."
Judging by the crowd reaction, it' a success -- but is it enough to beat McKinley High's original glee club, who just re-recruited Chord Overstreet's character Sam. Check out another preview clip with Sam below:
The full episode airs December 6.
