Question: An Australian TV show host appeared in the stage production of Cats in the role of one of the feline characters who also appeared in the poetry book Old Possum's Book of Practical Cats, which was written by who?
Context: Jeffrey Travis Andrew "Jeff" Phillips (born November 1948) is an Australian TV show host, personality, musical theatre actor and pop singer active from 1966 to the early 1990s.  As a pop singer, he had a Top 40 hit on the "Go-Set" singles chart with a cover version of The Shirelles' 1961 hit, "Baby It's You".  At the Logie Awards of 1970, he won the Best New Talent category for hosting his own ABC-TV pop show, "Sounds Like Us".  In the early 1970s he hosted a series of teen pop music shows, "Happening '71" and "Happening '72".  In July 1972 Phillips won a song prize at the Fifth Olympiad of Song, held in Athens, performing his self-written work, "Gloria"; the prize money was 100,000 drachmae (AUD $2,797).  Although he issued further singles, until the early 1980s, he had no other national Top 40 chart success.  From July 1985 to October 1987 he appeared in the Australian stage production of "Cats" in the role of Rum Tum Tugger in both the Sydney run and the Melbourne season; he also performed on the original Australian cast album. Old Possum's Book of Practical Cats (1939) is a collection of whimsical poems by T. S. Eliot about feline psychology and sociology, published by Faber and Faber.  It is the basis for the musical "Cats". Grizabella is the "Glamour Cat" in the musical production "Cats".  She does not appear in T. S. Eliot's work "Old Possum's Book of Practical Cats", but she is a prominent character in the stageplay.  It appears that she is the feline version of the woman mentioned in T.S. Eliot's poem "Rhapsody on a Windy Night". Cats is a 1998 direct-to-video musical film of the long-running West End production of "Cats", Andrew Lloyd Webber's musical based on "Old Possum's Book of Practical Cats" by T. S. Eliot.  Lloyd Webber himself personally oversaw orchestration for the film and called on Gillian Lynne, the original show's choreographer, to personally train the cast for the film.  Trevor Nunn, the original director, did not serve as the director of this production.  Andrew Lloyd Webber and others on the production team for the film wanted to keep the feeling that viewers watching the film could still get the sense of seeing the show live, by having all views be facing the stage, therefore, getting multiple views of the set, but still feel like the viewer is part of a live audience, with several close-ups.  Initially released to VHS and subsequently DVD and Blu-ray, the film has since been shown on television channels including PBS, the BBC, and Ovation TV.  It was filmed at the Adelphi Theatre in London. Electra is minor female feline character in "Cats", a musical inspired by the T. S. Eliot's 1939 poetry book, "Old Possum's Book of Practical Cats".  She is a dancer in the chorus line of "kittens" in the tribe of Jellicle cats. Rum Tum Tugger is one of the many feline characters in the poetry book "Old Possum's Book of Practical Cats" by T. S. Eliot, published in 1939, and in the musical "Cats", which premiered in 1981 and is based on Eliot's book. "Jellicle cats", or simply the "Jellicles", are a type of feline mentioned in T. S. Eliot's book "Old Possum's Book of Practical Cats", and in "Cats", a stage musical written by Andrew Lloyd Webber and based on the book. Mr. Mistoffelees is a character in T. S. Eliot's poetry book "Old Possum's Book of Practical Cats" and its stage adaptation, Andrew Lloyd Webber's popular musical "Cats".  He is an important primary character, and one of the most popular of the show.  He is also sometimes named Quaxo. Cats is a musical composed by Andrew Lloyd Webber, based on "Old Possum's Book of Practical Cats" by T. S. Eliot, and produced by Cameron Mackintosh.  The musical tells the story of a tribe of cats called the Jellicles and the night they make what is known as "the Jellicle choice" and decide which cat will ascend to the Heaviside Layer and come back to a new life.  "Cats" introduced the song standard "Memory".  The first performance of "Cats" was in 1981. "The Naming of Cats" is a poem in T. S. Eliot's poetry book "Old Possum's Book of Practical Cats" and its stage adaptation, Andrew Lloyd Webber's popular musical "Cats".  It describes to humans how cats get their names.  The poem has also been quoted in other films, notably "Logan's Run", when Logan meets the old man outside the dome city.
Answer: T. S. Eliot