The rumors are true: Lea Michele will be singing 'Let It Go' in the 'Glee' season premiere -- check out a sneak peek at her epic 'Frozen'-inspired performance!

In the promo for the final season opener, the actress (who recently got inked with boyfriend Matthew Paetz) belts out the Disney hit with the kind of charisma and feeling that we've grown to expect (and obsess over!) in her phenom performances. The clip of Lea -- in character as Rachel Berry, obvs -- shows her alone on stage, washed in blue spotlights in a stunning Queen Elsa-esque gown. Of course, you have to suspend your disbelief just a little during the number -- after all, Idina Menzel (the originator of the song and the voice of Elsa in 'Frozen') also plays the character of Rachel's mom on the show. But isn't that the magic of 'Glee,' anyway?

In addition to Lea's highly anticipated performance, the 'Glee' promo also features all of our fan faves -- like Jane Lynch as Sue Sylvester, Matthew Morrison as Mr. Shue and our fave on-and-off again couples like Naya Rivera as Santana and Heather Morris as Brittany, and Chris Colfer as Kurt and Darren Criss as Blaine. Does this season really have to be the end? We're reaching for the tissues already...

Watch Lea Michele 'Let It Go' in the 'Glee' promo above, and don't forget to tune into the sixth and final season of 'Glee' at 8 PM ET on Jan. 9 on FOX.

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