Sneak Peek: 'Glee' 'I Am Unicorn' pics; Shelby's back!

glee-unicorn-1.jpgOn Tuesday's (Sept. 27) "Glee," Rachel Berry ( Lea Michele) will again be reunited with her birth mom, ex Vocal Adrenalin coach Shelby Corcoran ( Idina Menzel). And, thanks to some just-released pictures, we can give you an early peek at that reunion.

Based on the photos, it looks like mother and daughter will again sing a duet -- possibly a song from a certain musical that Rachel mentioned in the season opener.

In other pics, we see Kurt ( Chris Colfer) swinging from a scaffold, Blaine ( Darren Criss) singing in some super-pegged jeans and Brittany ( Heather Morris) wearing some kind of Unicorn-inspired headgear.

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Photo/Video credit: FOX