The Texas International Pop Festival took place near this site during Labor Day weekend in 1969, two weeks after the Woodstock Music and Art Fair brought widespread attention to "hippie" culture through news reports of chaos caused in part by rainy weather and lax security. As many as 150,000 hippies, bikers, and music lovers came to Lewisville, then a town of about 9,000 people, for the three-day event at the Dallas International Motor Speedway along Interstate Highway 35 south of town. Twenty-five musical acts in soul, blues, and rock and roll performed, including Janis Joplin, Sly and the Family Stone, Grand Funk Railroad, Chicago Transit Authority, Herbie Mann, and the then relatively unknown United Kingdom band Led Zeppelin. On Lewisville's north side, a public campground on the shores of Lewisville Lake housed thousands of attendees, and a small free stage there featured local bands for campers. Skinny-dipping in Lake Lewisville, prompted by the lack of shower facilities and the late-summer heat, drew much attention, and although many local residents wanted the festival shut down because they feared violence and unsavory activity, no acts of violence were reported; instead, area citizens encountered a culture previously foreign to them, and many attendees later remembered the festival as a life-changing event.