'30 Rock' actor 'starstruck by Aniston'

Jack McBrayer from 30 Rock has revealed that he was left starstruck after Jennifer Aniston made an appearance on the hit comedy.

The actor said that the former Friends star was "lovely to be around" and added that her role on the show provided him with a real learning experience.

"She's such a pro, and she was just so lovely to be around," he said.

"[The performance] was really fantastic. It was impressive. We were all taking notes," McBrayer added.

Aniston herself recently commented that she had "the time of [her] life" while filming her appearance on the show.

"They were just so good at what they do. That was awesome. It was really, really fun. That cast is stellar and Alec Baldwin, Tina Fey - what a great group of people," she said.