The festival was the brainchild of Angus G. Wynne III , son of Angus G. Wynne , the founder of the Six Flags Over Texas Amusement Park . Wynne was a concert promoter who had attended the Atlanta International Pop Festival on the July Fourth weekend . He decided to put a festival on near Dallas , and joined with the Atlanta festival 's main organizer , Alex Cooley , forming the company Interpop Superfest
Atlanta International Pop Festival
Atlanta International Pop Festival (1969)
Texas International Pop Festival