The Mothers of Invention were an American rock band from the 1960s and 70s, led by the influential musician and composer, Frank Zappa. Known for their fusion of rock, jazz, and classical music, the band's style was also characterized by satirical lyrics and innovative production techniques. The Mothers of Invention were significant for their avant-garde approach, challenging conventional musical norms and providing a platform for Zappa's eclectic compositions. Their influential works include albums like "Freak Out!" and "We're Only in It for the Money," which both showcased their unique blend of musical styles and thematic content.