Jennifer Aniston Goes 30 Rock Crazy

Jennifer Aniston has a smashing good time filming her cameo for the hit NBC comedy 30 Rock” at Silvercup Studios in Long Island City on Friday.

The 39-year-old former Friends star will play Claire Harper, the former roommate of Liz Lemon (Tina Fey), and begins to stalk Jack Donaghy (Alec Baldwin). The episode will air this fall.

Looks like one of Jen‘s scenes included her and Jenna (Jane Krakowski) dancing around in spraying water. A fire hydrant or water sprinkler, perhaps?

30 Rock returns with its third season premiere on Thursday, October 30th 9:30PM ET/PT on NBC.

For the full set of Jen pictures on the set of 30 Rock, visit BauerGriffinOnline.com!