All the single ladies! Jennifer Aniston, Courteney Cox spend Christmas Eve together

Jennifer AnistonandCourteney Coxapparently took the"Friends"theme song to heart.

In the spirit ofThe Rembrandts,"I'll Be There For You,"Aniston spentChristmas Evewith her best friend and former co-star, who is still in the midst of a separation fromDavid Arquette.

The two pals, who became BFFs while working on the hitNBCseries, took comfort in each other during a holiday usually celebrated with relatives.

"Jen and Courteney are tired after a long year,"a source told People.com."They celebrated Christmas {with} each other and just focused on making things special for Coco,"Cox's six-year-old daughter with Arquette.

Both Aniston, 41, and Cox, 46, spent much of 2010 unlucky in love. Aniston was linked in the gossip magazines to a number of men, fromGerard ButlertoJason Sudeikis, but no guy proved a match for the movie star. Cox and Arquette split shortly after their 11th anniversary in June, though it didn't become public until the fall.

Cox toldAustralia's TV Week in early November that she's been relying on Aniston as she copes with the fall-out of her separation.

"We just have fun, we laugh, we're inseparable and it's great,"Cox explained."It's funny, a lot of really close friends are kind of going through this right now or like Jennifer {who} has gone through it {with ex-husband,Brad Pitt}. I don't know what's going on in the planets or what, but things are being shaken up and I don't know what's going to happen, but, yeah, Jennifer has been amazing for sure."

The"Cougar Town"star also revealed to the publication that while she didn't"know what will happen"with Arquette, it was"not like we're getting divorced"- a statement that the People sources still say is true.

In fact, Arquette, 39, did spend some time with Cox and their daughter during the holiday, although sources told the site that the"Scream"actor is still struggling with the split.

Perhaps he could use a 'Friend' of his own.

Source