Disco is the late-1970s dance music genre that transformed popular music and seeded virtually every subsequent dance subgenre. Born in early-1970s NYC clubs (the Loft, Paradise Garage), disco fused funk, soul, and Philly soul with extended song structures designed for dancefloor pacing. The four-on-the-floor kick that anchors house, techno, and most dance music today comes directly from disco. The genre peaked commercially in 1977–1979 (Saturday Night Fever, Studio 54), suffered a 1979 anti-disco backlash, and went underground — only to seed house and garage in Chicago and New York in the early 1980s. Modern disco-house, nu disco, and contemporary "boogie" all directly descend from this lineage. The genre remains the rhythmic and cultural foundation of dance music.