'Glee' Final Season: Watch the First Full Performance

January can be a grim month. The fun of Christmas and New Year's Eve has passed, and all you've got are short days and cold nights with little to look forward to until spring -- unless you're a Glee fan, of course. The show starts up again on Jan. 9 for its sixth and final season. The first full performance -- featuring Glee favorites Darren Criss and Lea Michele -- has the hit the Internet. Check it out below:

Hear Lea Michele Sing Full Version of 'Let It Go' on 'Glee'

In the clip, the all-male group the Warblers perform a version of "Sing" -- the lead single from Ed Sheeran's Grammy-nominated x, which came out last June. ("Sing," produced by Pharrell, sounds like Sheeran's homage to Justified-era Justin Timberlake.)

Ed Sheeran Proves He Can Dance In 'Thinking Out Loud' Video

Blane -- played by Criss -- returns this season as the coach of the Warblers. The group executes an impressively choreographed dance routine while performing "Sing" for Michele. It might make Sheeran jealous: The singer recently had to learn how to dance for his "Thinking Out Loud" video.

Catch new episodes of Glee starting Jan. 9 at 8 p.m. on Fox.


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