Actress Courteney Cox is said to have promised the producer of her hit TV show 'Cougar Town' to get her 'Friends' co-star Jennifer Aniston to sign up for an episode.

The two had appeared together on TV series, 'Dirt', and now Cox, 45, has promised producer Bill Lawrence that she would try and get Aniston, 41, to appear on the show as a birthday gift to him.

"Courteney promised me as a birthday gift she'd make that happen, and I think that's supersweet," the Daily Star quoted Lawrence as telling TV Guide magazine.

Lisa Kudrow has already appeared in Cougar Town this season, playing a bad-tempered cosmetic surgeon. (ANI)