The Assembled Multitude was an instrumental ensemble from Philadelphia, active in the late 1960s and early 1970s. The group, formed by producer Tom Sellers, was renowned for their orchestrated versions of popular rock songs. Their most notable hit was an instrumental rendition of The Who's "Overture from Tommy," which reached the top 20 on the Billboard Hot 100 in 1970. The Assembled Multitude's innovative blending of rock and classical elements played a significant role in the development of the orchestral rock genre.