Theatre musicals have been the main source of social entertainment in the globes largest cities for ages. Infact, some musicals have been pleasing people for over 20 years and still popular. With the popular interest of this category of public entertainment, we will mention the biggest earning and longest running musical shows in the world. The heavy weight theatre musical that has to be discussed is Phantom, one of the most astonishing musical shows to ever be put on stage. This magnificent show is the longest running theatre production in history and the highest earning of all time. The musical show was written for the theatre stage by Sir Andrew Lloyd Webber and tells the tale of a disfigured French man who falls in deep love with a chorus singer. The magnificent songs of the musical production are now world famous and the mask worn by the Phantom of the Opera is so distinct that it’s evident in various fancy dress parties around the world.Next is the sensational musical known as Cats. Again another memorable theatre show and one that ran pretty near to 19 years until its last stage show in late 2000. The theatre show won both the Laurence Olivier Award and the Tony award for very best theatre show and was shown in both London’s West End and Broadway New York. The theatre musical was so popular that it was scripted into 19 different languages and even shown across the world. Cats the theatre show was a true record breaker. Now it is time for the most renowned play with a French title of all time, Les Miserables or changed into English as The Miserables. The show has been showing in London’s glittering West End for beyond 15 years now and is the 2nd longest running show in London’s entertainment history. One of the most memorable songs from the musical is I Dreamed a Dream, which was also sung by TV show runner up Susan Boyle. The show was up for twelve Tony awards and won eight of them, including finest theatre production.