Translating musicals is a very challenging work, because several constraints need to be taken into consideration. Music i.e. composer’s work is the main factor that needs to be respected and unaltered. Translators need to take a lot of factors into account while translating a musical, such as: to keep the same meaning as it is in the original, to make the lyrics singable, namely performable, but also to respect the rhymes as much as possible as well as rhythm. There have not been many studies or methods conducted in the music-linked translation due to it being a new field in the area of translation studies. For the purpose of this thesis, the first act of the musical The Phantom of the Opera by Andrew Lloyd Webber was translated into Croatian. The aim of this master’s thesis was to research the methods for effective translation of the musical, and present them on the example of translating The Phantom of the Opera musical into Croatian. One possible approach was Peter Low’s Pentathlon Approach, and the other was Franzon’s Functional Approach. The results of the translation are presented and discussed in the last chapter of this master’s thesis. The main aim of translating was to make the text singable and respect the music, as well as the naturalness. Rhyme and rhythm were respected as much as it was possible, and any changes are discussed. When translating a musical, a translator is a mediator between languages, cultures, and meanings. He or she is the one that crosses language borders and brings other cultures and art to nations worldwide, for example, something as remarkable and complex as a musical.