JAniston090308_01_X17.jpgJennifer Aniston JAniston090308_18_X17.jpg Jennifer Aniston doesn't mind working nights - especially when she gets to work on a super-hot sitcom like 30 Rock! We caught the former Friend shooting a scene for her guest appearance on the hit sitcom in New York last night. Thankfully, Jen didn't have to work too late, although she sure packed plenty of action into her shooting schedule - we saw her wrestling with a cop, kissing some guy's hand, and trading dialogue with other actors. Looks like Jen's episode is going to be must-see TV - we can't wait 'til it airs!