Webber's most famous work, Cats, which set the record for the longest public performance of a musical, has long used CADAC on tour. Cats is a musical by Andrew Lloyd Webber based on a poem written for children by T. S. Eliot. Weber paid full attention to the characteristics of children, so Cats is more popular with children. Cats was first performed as a musical on May 11, 1981. The venue is the New London Theatre in the west End of London. It became an instant hit in Britain. Cats is the most successful and longest-running British musical of all time, with a box office record that is hard to break.