Musical Rap
Runaways is musical portrait of kids that live on the edges of society and the musical tells the story of the lives of children who run away from home and live on the city streets. The characters were based on interviews with real-life runaway teens in New York City in the late 1970s. Runaways featured different musical styles from pop, jazz to reggae, and even hip hop and rap. The song Enterprise that was sung by Deidre, Nikki and Mex-Mongo, takes the spoken word and sets it to rhythm and It may well have been the first rap number on Broadway.
Source: Guide To Musical Theatre, Wikipedia
Source image: Wikipedia