Lea Michele Sings 'Let It Go' in New 'Glee' Promo

Tyler Golden/FOX
Rachel (Lea Michele) needs an image makeover in the "Old Dog New Tricks" episode of Glee.

You might not be ready to let Glee go, but the final season is almost here.

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In a promo for the last season, Lea Michele sings "Let It Go." Watch it below.

Glee returns Jan. 9.