Monica, Rachel, Phoebe -- is that you?
Former "Friends" star Jennifer Aniston is guest starring on an episode of "30 Rock" this season and we may have stumbled upon the hush-hush plot of the show.
Check out our footage of her on set yesterday -- don't Tina Fey and Jane Krakowski look exactly like Jen's ex co-stars Courteney Cox-Arquette and Lisa Kudrow?
The One Where Jen Recruits New Friends
8/30/2008 5:50 PM PDT BY TMZ STAFF
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