Aniston and Jolie Encounter

According to the New York Daily News, Angelina Jolie and Brad Pitt's ex-wife Jennifer Aniston may have an awkward reunion at "The Night Before" pre-Oscar event at the Beverly Hills Hotel.

"Both women are hosts and it is customary for the hosts to attend," said one source. "The last time they saw each other, as far as anyone knows, was three years ago at this event."

Other hosts for the event, which will benefit the Motion Picture and Television Fund, include Tom Cruise and Katie Holmes, Tom Hanks and Rita Wilson, and Michael Douglas and Catherine Zeta-Jones.

Other celebrities who were scheduled to attend include Jake Gyllenhaal, Matt Dillon, Fergie, Ron Howard, George Clooney, and Elton John.

Jolie was seen earlier at the Spirit Awards in Santa Monica Beach showing off her baby bump in a fitted black dress, according to the New York Daily News.