Jennifer Aniston hosted a star-studded Christmas party this weekend. The 44-year-old actress had an A-list guest list which included Gwyneth Paltrow - who dated Jennifer's ex-husband Brad Pitt between 1994 until 1997 - and her spouse, Coldplay frontman Chris Martin, to her Bel Air mansion on Sunday night. Their mutual pal Chelsea Handler and Jennifer's former 'Friends' co-star Courteney Cox - who was seen driving to the bash alongside a mystery man - were also in attendance. In addition, Robert Downey Jr. - who stars with Gwyneth in the Iron Man
films - and his wife Susan, Arrested Development
actors Will Arnett and Jason Bateman, and Tobey McGuire and his wife, celebrity jewelry designer Jennifer Meyer
, were all spotted at the festive bash. Jennifer threw the party with her fiancé Justin Theroux - who she fell for on the set of their movie Wanderlust
in 2010 - and the 42-year-old actor's cousin, famed British documentary maker Louis Theroux, was present with his with wife Nancy.