Jennifer Aniston was one of the many celebs participating in last night's 24 Hour Plays on Broadway benefit in New York. The project featured six 10-minute plays, all written, rehearsed and performed within a 24-hour period. Aniston co-starred with Rosie Perez, who said, "We had a real boost from Jennifer Aniston. She was a sweet as pie. I really appreciated her coming because she raised the profile of tonight's event and that is going to help so much. She didn't have to do this. She didn't have to take time out of her schedule... She said, 'I'll do all the press. I'll do whatever you want.' She's got chops. She said she had performed off-Broadway. She's really, really good." Other celebs who performed last night included Anna Paquin, Julianna Margulies, Sam Rockwell and Liev Schreiber.