Festival organizers cancel Sun City Music Festival Despite festival organizers’ earlier intentions, Sun City Music Festival will no longer be returning to Ascarate Park, Texas for the 2018 Labor Day Weekend. Related Posts: Austin City Limits organizers cancel 2020 festival, announce 2021 dates Ubbi Dubbi and Freaky Deaky merge for 2020 edition: Ubbi Dubbi Gets Freaky Deaky