Grease premiered on Broadway in 1972, featuring music, lyrics, and a book by Jim Jacobs and Warren Casey. While the 1978 film starring John Travolta and Olivia Newton-John became a global phenomenon, the original stage version remains a staple of live theatre. The piano vocal score is the bridge between these worlds, containing the vocal lines and a piano reduction of the full orchestral arrangements.

One of the most important things to understand when looking for a grease piano vocal score is the variation in editions. Because the show has evolved over decades, there are significant differences between the original Broadway score, the school version, and the later "revival" versions. Most modern scores used for licensed productions now include hit songs from the film, such as Grease, Hopelessly Devoted to You, and You're the One That I Want, which were not part of the original 1972 stage debut.

Finding a legal copy of the grease piano vocal score is straightforward. Music publishing giants like Hal Leonard offer vocal selections, which contain the show’s most popular hits. However, for those putting on a full performance, the complete rehearsal score is typically obtained through a licensing house like Concord Theatricals (formerly Samuel French). These licensed scores are detailed, including dialogue cues and specific stage directions that help the pianist follow the action on stage.