Kudrow won an Emmy Award for her role in the hit U.S. show - picking up the prize for Outstanding Supporting Actress in a Comedy Series in 1998 for her portrayal of wacky masseuse Phoebe Buffay.
But Kudrow admits she found it difficult to relate to her character's hippie side - and turned to Aniston for inspiration.
She says, "Pheobe was so spiritual and 'out there' - and I wasn't at all. Not at all. If anyone was it was Jennifer. She introduced me to certain books that gave me an insight into that world - which was a more spiritual realm.".