The Texas International Pop Festival State Historic Marker located in Lewisville, TX, USA, commemorates the first major rock festival held in Texas over Labor Day weekend from August 30 to September 1, 1969. This historic marker not only recognizes the musical achievements of the festival but also highlights its unique cultural significance in the larger context of Texas history. As you close your eyes and immerse yourself in the atmosphere of that fateful weekend, allow yourself to be transported back in time as you listen to captivating performances from legendary artists like Janis Joplin and Grand Funk Railroad, who were making their debut at this historic event.