The former Friends star will make a guest appearance in an upcoming episode of the comedy show, which stars Baldwin and TINA FEY.

And the star will shock fans by playing a "free-spirited, Fatal Attraction-like stalker" who becomes obsessed with Baldwin's character on the show.

Fey, the series' star, creator and producer, says, "Jennifer is not only incredibly lovely to have around, she also has what the young people would call 'mad skills'. We're very excited that she's joining us."

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