Start up the rumor mill again, because Brad Pitt went to Jennifer Aniston’s Christmas party on Saturday.  Other attendees included Gwyneth Paltrow, Kate Hudson, and Jimmy Kimmel.

Brad was there for about four hours.  He showed up around 7:00 p.m., and stayed until the end.  So first Jennifer’s birthday party… now her Christmas party.

A source says, quote, “They have been in touch a few times since her birthday and are keeping it friendly.”