Final answer:
The genre of "Over the Rainbow" is musical theatre or popular music.
Step-by-step explanation:
The genre of the song "Over the Rainbow" is musical theatre or popular music. It was composed by Harold Arlen with lyrics by E.Y. Harburg. The song was written for the 1939 film The Wizard of Oz and became one of the most iconic songs in American musical history. It is typically classified as a show tune, which is a genre in musical theatre.