The hit musical 'Cats' has had a slight makeover by for in of on to its comeback performances starting by for in of on to December in London. One by for in of on to the traditional songs will now be a rap. The musical's writer, Andrew Lloyd Webber, said he felt the musical needed to be updated to appeal by for in of on to a new generation of theatre-goers. Lloyd Webber based his musical by for in of on to a famous book called "Old Possum's Book by for in of on to Practical Cats" by for in of on to the famous British writer T. S. Eliot. It tells the story of a group of cats called the Jellicles, who have to decide which cat gets to come back by for in of on to life after death. 'Cats' first opened in London's West End in 1981 and on Broadway in New York in 1982. It won numerous awards and ran by for in of on to twenty-one years by for in of on to the English capital. The rap will be performed by for in of on to the Rum Tum Tugger character, who is a rebellious street cat. Lloyd Webber said the original poem that the cat sings, written by for in of on to the 1930s, has a strong rap rhythm. He joked that T.S. Eliot may have been the world's first rapper, saying: "I've come by for in of on to the conclusion…that maybe Eliot was the inventor by for in of on to rap." He added: "I think Rum Tum Tugger is going to have to become a street cat by for in of on to today and he has to do hip-hop." The show's producer, Sir Trevor Nunn, explained the decision to include the rap. He said: "There is a whole generation by for in of on to kids who haven't seen 'Cats' or discovered it. And there are certainly elements by for in of on to the show that can be reinvigorated by for in of on to very contemporary terms."